CREATE TABLE xmm3dr8 (
DETID            BIGINT          ,
SRCID            BIGINT          ,
DR3SRCID         INTEGER         ,
DR3DETID         INTEGER         ,
DR3DETDIST       REAL            ,
DR3SRCDIST       REAL            ,
DR3MULT          SMALLINT        ,
DR4SRCID         INTEGER         ,
DR4DETID         INTEGER         ,
DR4DETDIST       REAL            ,
DR4SRCDIST       REAL            ,
DR4MULT          SMALLINT        ,
IAUNAME          VARCHAR         ,
SRC_NUM          SMALLINT        ,
OBS_ID           VARCHAR         ,
REVOLUT          VARCHAR         ,
MJD_START        DOUBLE PRECISION,
MJD_STOP         DOUBLE PRECISION,
OBS_CLASS        SMALLINT        ,
PN_FILTER        VARCHAR         ,
M1_FILTER        VARCHAR         ,
M2_FILTER        VARCHAR         ,
PN_SUBMODE       VARCHAR         ,
M1_SUBMODE       VARCHAR         ,
M2_SUBMODE       VARCHAR         ,
RA               DOUBLE PRECISION,
DEC              DOUBLE PRECISION,
POSERR           REAL            ,
LII              DOUBLE PRECISION,
BII              DOUBLE PRECISION,
RADEC_ERR        REAL            ,
SYSERRCC         REAL            ,
REFCAT           SMALLINT        ,
POSCOROK         BOOLEAN         ,
RA_UNC           DOUBLE PRECISION,
DEC_UNC          DOUBLE PRECISION,
CCDPN            SMALLINT        ,
PN_RAWX          SMALLINT        ,
PN_RAWY          SMALLINT        ,
CCDM1            SMALLINT        ,
M1_RAWX          SMALLINT        ,
M1_RAWY          SMALLINT        ,
CCDM2            SMALLINT        ,
M2_RAWX          SMALLINT        ,
M2_RAWY          SMALLINT        ,
EP_1_FLUX        REAL            ,
EP_1_FLUX_ERR    REAL            ,
EP_2_FLUX        REAL            ,
EP_2_FLUX_ERR    REAL            ,
EP_3_FLUX        REAL            ,
EP_3_FLUX_ERR    REAL            ,
EP_4_FLUX        REAL            ,
EP_4_FLUX_ERR    REAL            ,
EP_5_FLUX        REAL            ,
EP_5_FLUX_ERR    REAL            ,
EP_8_FLUX        REAL            ,
EP_8_FLUX_ERR    REAL            ,
EP_9_FLUX        REAL            ,
EP_9_FLUX_ERR    REAL            ,
PN_1_FLUX        REAL            ,
PN_1_FLUX_ERR    REAL            ,
PN_2_FLUX        REAL            ,
PN_2_FLUX_ERR    REAL            ,
PN_3_FLUX        REAL            ,
PN_3_FLUX_ERR    REAL            ,
PN_4_FLUX        REAL            ,
PN_4_FLUX_ERR    REAL            ,
PN_5_FLUX        REAL            ,
PN_5_FLUX_ERR    REAL            ,
PN_8_FLUX        REAL            ,
PN_8_FLUX_ERR    REAL            ,
PN_9_FLUX        REAL            ,
PN_9_FLUX_ERR    REAL            ,
M1_1_FLUX        REAL            ,
M1_1_FLUX_ERR    REAL            ,
M1_2_FLUX        REAL            ,
M1_2_FLUX_ERR    REAL            ,
M1_3_FLUX        REAL            ,
M1_3_FLUX_ERR    REAL            ,
M1_4_FLUX        REAL            ,
M1_4_FLUX_ERR    REAL            ,
M1_5_FLUX        REAL            ,
M1_5_FLUX_ERR    REAL            ,
M1_8_FLUX        REAL            ,
M1_8_FLUX_ERR    REAL            ,
M1_9_FLUX        REAL            ,
M1_9_FLUX_ERR    REAL            ,
M2_1_FLUX        REAL            ,
M2_1_FLUX_ERR    REAL            ,
M2_2_FLUX        REAL            ,
M2_2_FLUX_ERR    REAL            ,
M2_3_FLUX        REAL            ,
M2_3_FLUX_ERR    REAL            ,
M2_4_FLUX        REAL            ,
M2_4_FLUX_ERR    REAL            ,
M2_5_FLUX        REAL            ,
M2_5_FLUX_ERR    REAL            ,
M2_8_FLUX        REAL            ,
M2_8_FLUX_ERR    REAL            ,
M2_9_FLUX        REAL            ,
M2_9_FLUX_ERR    REAL            ,
EP_8_RATE        REAL            ,
EP_8_RATE_ERR    REAL            ,
EP_9_RATE        REAL            ,
EP_9_RATE_ERR    REAL            ,
PN_1_RATE        REAL            ,
PN_1_RATE_ERR    REAL            ,
PN_2_RATE        REAL            ,
PN_2_RATE_ERR    REAL            ,
PN_3_RATE        REAL            ,
PN_3_RATE_ERR    REAL            ,
PN_4_RATE        REAL            ,
PN_4_RATE_ERR    REAL            ,
PN_5_RATE        REAL            ,
PN_5_RATE_ERR    REAL            ,
PN_8_RATE        REAL            ,
PN_8_RATE_ERR    REAL            ,
PN_9_RATE        REAL            ,
PN_9_RATE_ERR    REAL            ,
M1_1_RATE        REAL            ,
M1_1_RATE_ERR    REAL            ,
M1_2_RATE        REAL            ,
M1_2_RATE_ERR    REAL            ,
M1_3_RATE        REAL            ,
M1_3_RATE_ERR    REAL            ,
M1_4_RATE        REAL            ,
M1_4_RATE_ERR    REAL            ,
M1_5_RATE        REAL            ,
M1_5_RATE_ERR    REAL            ,
M1_8_RATE        REAL            ,
M1_8_RATE_ERR    REAL            ,
M1_9_RATE        REAL            ,
M1_9_RATE_ERR    REAL            ,
M2_1_RATE        REAL            ,
M2_1_RATE_ERR    REAL            ,
M2_2_RATE        REAL            ,
M2_2_RATE_ERR    REAL            ,
M2_3_RATE        REAL            ,
M2_3_RATE_ERR    REAL            ,
M2_4_RATE        REAL            ,
M2_4_RATE_ERR    REAL            ,
M2_5_RATE        REAL            ,
M2_5_RATE_ERR    REAL            ,
M2_8_RATE        REAL            ,
M2_8_RATE_ERR    REAL            ,
M2_9_RATE        REAL            ,
M2_9_RATE_ERR    REAL            ,
EP_8_CTS         REAL            ,
EP_8_CTS_ERR     REAL            ,
PN_8_CTS         REAL            ,
PN_8_CTS_ERR     REAL            ,
M1_8_CTS         REAL            ,
M1_8_CTS_ERR     REAL            ,
M2_8_CTS         REAL            ,
M2_8_CTS_ERR     REAL            ,
EP_8_DET_ML      REAL            ,
EP_9_DET_ML      REAL            ,
PN_1_DET_ML      REAL            ,
PN_2_DET_ML      REAL            ,
PN_3_DET_ML      REAL            ,
PN_4_DET_ML      REAL            ,
PN_5_DET_ML      REAL            ,
PN_8_DET_ML      REAL            ,
PN_9_DET_ML      REAL            ,
M1_1_DET_ML      REAL            ,
M1_2_DET_ML      REAL            ,
M1_3_DET_ML      REAL            ,
M1_4_DET_ML      REAL            ,
M1_5_DET_ML      REAL            ,
M1_8_DET_ML      REAL            ,
M1_9_DET_ML      REAL            ,
M2_1_DET_ML      REAL            ,
M2_2_DET_ML      REAL            ,
M2_3_DET_ML      REAL            ,
M2_4_DET_ML      REAL            ,
M2_5_DET_ML      REAL            ,
M2_8_DET_ML      REAL            ,
M2_9_DET_ML      REAL            ,
EP_EXTENT        REAL            ,
EP_EXTENT_ERR    REAL            ,
EP_EXTENT_ML     REAL            ,
EP_HR1           REAL            ,
EP_HR1_ERR       REAL            ,
EP_HR2           REAL            ,
EP_HR2_ERR       REAL            ,
EP_HR3           REAL            ,
EP_HR3_ERR       REAL            ,
EP_HR4           REAL            ,
EP_HR4_ERR       REAL            ,
PN_HR1           REAL            ,
PN_HR1_ERR       REAL            ,
PN_HR2           REAL            ,
PN_HR2_ERR       REAL            ,
PN_HR3           REAL            ,
PN_HR3_ERR       REAL            ,
PN_HR4           REAL            ,
PN_HR4_ERR       REAL            ,
M1_HR1           REAL            ,
M1_HR1_ERR       REAL            ,
M1_HR2           REAL            ,
M1_HR2_ERR       REAL            ,
M1_HR3           REAL            ,
M1_HR3_ERR       REAL            ,
M1_HR4           REAL            ,
M1_HR4_ERR       REAL            ,
M2_HR1           REAL            ,
M2_HR1_ERR       REAL            ,
M2_HR2           REAL            ,
M2_HR2_ERR       REAL            ,
M2_HR3           REAL            ,
M2_HR3_ERR       REAL            ,
M2_HR4           REAL            ,
M2_HR4_ERR       REAL            ,
PN_1_EXP         REAL            ,
PN_2_EXP         REAL            ,
PN_3_EXP         REAL            ,
PN_4_EXP         REAL            ,
PN_5_EXP         REAL            ,
M1_1_EXP         REAL            ,
M1_2_EXP         REAL            ,
M1_3_EXP         REAL            ,
M1_4_EXP         REAL            ,
M1_5_EXP         REAL            ,
M2_1_EXP         REAL            ,
M2_2_EXP         REAL            ,
M2_3_EXP         REAL            ,
M2_4_EXP         REAL            ,
M2_5_EXP         REAL            ,
PN_1_BG          REAL            ,
PN_2_BG          REAL            ,
PN_3_BG          REAL            ,
PN_4_BG          REAL            ,
PN_5_BG          REAL            ,
M1_1_BG          REAL            ,
M1_2_BG          REAL            ,
M1_3_BG          REAL            ,
M1_4_BG          REAL            ,
M1_5_BG          REAL            ,
M2_1_BG          REAL            ,
M2_2_BG          REAL            ,
M2_3_BG          REAL            ,
M2_4_BG          REAL            ,
M2_5_BG          REAL            ,
PN_1_VIG         REAL            ,
PN_2_VIG         REAL            ,
PN_3_VIG         REAL            ,
PN_4_VIG         REAL            ,
PN_5_VIG         REAL            ,
M1_1_VIG         REAL            ,
M1_2_VIG         REAL            ,
M1_3_VIG         REAL            ,
M1_4_VIG         REAL            ,
M1_5_VIG         REAL            ,
M2_1_VIG         REAL            ,
M2_2_VIG         REAL            ,
M2_3_VIG         REAL            ,
M2_4_VIG         REAL            ,
M2_5_VIG         REAL            ,
PN_ONTIME        REAL            ,
M1_ONTIME        REAL            ,
M2_ONTIME        REAL            ,
EP_ONTIME        REAL            ,
PN_OFFAX         REAL            ,
M1_OFFAX         REAL            ,
M2_OFFAX         REAL            ,
EP_OFFAX         REAL            ,
PN_MASKFRAC      REAL            ,
M1_MASKFRAC      REAL            ,
M2_MASKFRAC      REAL            ,
DIST_NN          REAL            ,
SUM_FLAG         SMALLINT        ,
EP_FLAG          VARCHAR         ,
PN_FLAG          VARCHAR         ,
M1_FLAG          VARCHAR         ,
M2_FLAG          VARCHAR         ,
TSERIES          BOOLEAN         ,
SPECTRA          BOOLEAN         ,
EP_CHI2PROB      DOUBLE PRECISION,
PN_CHI2PROB      DOUBLE PRECISION,
M1_CHI2PROB      DOUBLE PRECISION,
M2_CHI2PROB      DOUBLE PRECISION,
PN_FVAR          DOUBLE PRECISION,
PN_FVARERR       DOUBLE PRECISION,
M1_FVAR          DOUBLE PRECISION,
M1_FVARERR       DOUBLE PRECISION,
M2_FVAR          DOUBLE PRECISION,
M2_FVARERR       DOUBLE PRECISION,
VAR_FLAG         BOOLEAN         ,
VAR_EXP_ID       VARCHAR         ,
VAR_INST_ID      VARCHAR         ,
SC_RA            DOUBLE PRECISION,
SC_DEC           DOUBLE PRECISION,
SC_POSERR        REAL            ,
SC_DET_ML        REAL            ,
SC_EP_1_FLUX     REAL            ,
SC_EP_1_FLUX_ERR REAL            ,
SC_EP_2_FLUX     REAL            ,
SC_EP_2_FLUX_ERR REAL            ,
SC_EP_3_FLUX     REAL            ,
SC_EP_3_FLUX_ERR REAL            ,
SC_EP_4_FLUX     REAL            ,
SC_EP_4_FLUX_ERR REAL            ,
SC_EP_5_FLUX     REAL            ,
SC_EP_5_FLUX_ERR REAL            ,
SC_EP_8_FLUX     REAL            ,
SC_EP_8_FLUX_ERR REAL            ,
SC_EP_9_FLUX     REAL            ,
SC_EP_9_FLUX_ERR REAL            ,
SC_HR1           REAL            ,
SC_HR1_ERR       REAL            ,
SC_HR2           REAL            ,
SC_HR2_ERR       REAL            ,
SC_HR3           REAL            ,
SC_HR3_ERR       REAL            ,
SC_HR4           REAL            ,
SC_HR4_ERR       REAL            ,
SC_EXTENT        REAL            ,
SC_EXT_ML        REAL            ,
SC_CHI2PROB      DOUBLE PRECISION,
SC_FVAR          DOUBLE PRECISION,
SC_FVARERR       DOUBLE PRECISION,
SC_VAR_FLAG      BOOLEAN         ,
SC_SUM_FLAG      SMALLINT        ,
SC_EP_8_FMIN     REAL            ,
SC_EP_8_FMIN_ERR REAL            ,
SC_EP_8_FMAX     REAL            ,
SC_EP_8_FMAX_ERR REAL            ,
MJD_FIRST        DOUBLE PRECISION,
MJD_LAST         DOUBLE PRECISION,
N_DETECTIONS     SMALLINT        ,
CONFUSED         BOOLEAN         ,
HIGH_BACKGROUND  BOOLEAN         
);

COMMENT ON COLUMN xmm3dr8.DETID IS 'A unique number which identifies each entry (detection) in the catalogue. The DETID numbering assignments in 3XMM-DR8 bear no relation to those in 3XMM-DR4 and earlier but the DETID of the matching detection from the 3XMM-DR4 catalogue to the 3XMM-DR8 detection is provided via the DR4DETID column.
';
COMMENT ON COLUMN xmm3dr8.SRCID IS 'A unique number assigned to a group of catalogue entries which are assumed to be the same source. The process of grouping detections in to unique sources has changed since the 2XMM catalogue series and is described in Section 3.8. The SRCID assignments in 3XMM-DR8 bear no relation to those in 3XMM-DR4 and earlier but the nearest unique sources from the 3XMM-DR4 catalogue to the 3XMM-DR8 unique source is provided via the DR4SRCID column.
';
COMMENT ON COLUMN xmm3dr8.DR3SRCID IS 'The SRCID, from 2XMMi-DR3, of the nearest unique source in that catalogue that lies within 10 arcsecs of the 3XMM-DR8 unique source position
';
COMMENT ON COLUMN xmm3dr8.DR3DETID IS 'The DETID, from 2XMMi-DR3, of the nearest detection in that catalogue that lies within 10 arcsecs of the detection position in 3XMM-DR8.
';
COMMENT ON COLUMN xmm3dr8.DR3DETDIST IS 'The distance, in arcsecs, between the 3XMM-DR8 detection position and the nearest detection (within 10 arcsecs) in the 2XMMi-DR3 catalogue.
';
COMMENT ON COLUMN xmm3dr8.DR3SRCDIST IS 'The distance, in arcsecs, between the 3XMM-DR8 unique source position and the nearest unique source (within 10 arcsecs) in the 2XMMi-DR3 catalogue.
';
COMMENT ON COLUMN xmm3dr8.DR3MULT IS 'The number of unique sources from the 2XMMi-DR3 catalogue that lie within 10 arcsecs of the unique source position in 3XMM-DR8.
';
COMMENT ON COLUMN xmm3dr8.DR4SRCID IS 'The SRCID, from 3XMM-DR4, of the nearest unique source in that catalogue that lies within 10 arcsecs of the 3XMM-DR8 unique source position
';
COMMENT ON COLUMN xmm3dr8.DR4DETID IS 'The DETID, from 3XMM-DR4, of the detection with the same SRC_NUM and OBS_ID in the current version of the catalogue.
';
COMMENT ON COLUMN xmm3dr8.DR4DETDIST IS 'The distance, in arcsecs, between the 3XMM-DR8 detection position and the matching 3XMM-DR4 catalogue detection.
';
COMMENT ON COLUMN xmm3dr8.DR4SRCDIST IS 'The distance, in arcsecs, between the 3XMM-DR8 unique source position and the nearest unique source (within 10 arcsecs) in the 3XMM-DR4 catalogue.
';
COMMENT ON COLUMN xmm3dr8.DR4MULT IS 'The number of unique sources from the 3XMM-DR4 catalogue that lie within 10 arcsecs of the unique source position in 3XMM-DR8.
';
COMMENT ON COLUMN xmm3dr8.IAUNAME IS 'The IAU name assigned to the unique SRCID (see 3XMM-DR8 UG, Sec. 3.8.1).
';
COMMENT ON COLUMN xmm3dr8.SRC_NUM IS 'The (decimal) source number in the individual source list for this observation. When expressed in the hexadecimal system it identifies the source-specific product files belonging to this detection (2XMM UG Appendix A.1).
';
COMMENT ON COLUMN xmm3dr8.OBS_ID IS 'The XMM-Newton observation identification.
';
COMMENT ON COLUMN xmm3dr8.REVOLUT IS 'The XMM-Newton revolution number.
';
COMMENT ON COLUMN xmm3dr8.MJD_START IS 'Modified Julian Date (i.e., JD - 2400000.5) of the start of the observation.
';
COMMENT ON COLUMN xmm3dr8.MJD_STOP IS 'Modified Julian Date (i.e., JD - 2400000.5) of the end of the observation.
';
COMMENT ON COLUMN xmm3dr8.OBS_CLASS IS 'Quality classification of the whole observation based on the area flagged as bad in the manual flagging process as compared to the whole detection area, see 2XMM UG Sec. 3.2.6. 0 means nothing has been flagged, 1 indicates that 0% < area < 0.1% of the total detection mask has been flagged, 2 indicates that 0.1% <= area < 1% has been flagged, 3 indicates that 1% <= area < 10% has been flagged, 4 indicates that 10% <= area < 100% has been flagged, and 5 means that the whole field was flagged as bad.
';
COMMENT ON COLUMN xmm3dr8.PN_FILTER IS 'PN filter. The options are Thick, Medium, Thin1, Thin2, and Open, depending on the efficiency of the optical blocking. (For a detailed description see 3.3.6 EPIC filters and effective area on http://xmm.esac.esa.int/external/xmm_user_support/documentation/uhb).
';
COMMENT ON COLUMN xmm3dr8.M1_FILTER IS 'M1 filter. The options are Thick, Medium, Thin1, and Open, depending on the efficiency of the optical blocking, (For a detailed description see 3.3.6 EPIC filters and effective area on http://xmm.esac.esa.int/external/xmm_user_support/documentation/uhb).
';
COMMENT ON COLUMN xmm3dr8.M2_FILTER IS 'M2 filter. The options are Thick, Medium, Thin1, and Open, depending on the efficiency of the optical blocking, (For a detailed description see 3.3.6 EPIC filters and effective area on http://xmm.esac.esa.int/external/xmm_user_support/documentation/uhb).
';
COMMENT ON COLUMN xmm3dr8.PN_SUBMODE IS 'PN observing mode. The options are full frame mode with the full FOV exposed (in two sub-modes), and large window mode with only parts of the FOV exposed, see Tab. 2.3. For a detailed description see 3.3.2 Science modes of the EPIC cameras on http://xmm.esac.esa.int/external/xmm_user_support/documentation/uhb.
';
COMMENT ON COLUMN xmm3dr8.M1_SUBMODE IS 'M1 observing mode. The options are full frame mode with the full FOV exposed, partial window mode with only parts of the central CCD exposed (in different sub-modes, see Tab. 2.3), and timing mode where the central CCD was not exposed (''Fast Uncompressed''). For a detailed description see 3.3.2 Science modes of the EPIC cameras on http://xmm.esac.esa.int/external/xmm_user_support/documentation/uhb.
';
COMMENT ON COLUMN xmm3dr8.M2_SUBMODE IS 'M2 observing mode. The options are full frame mode with the full FOV exposed, partial window mode with only parts of the central CCD exposed (in different sub-modes, see Tab. 2.3), and timing mode where the central CCD was not exposed (''Fast Uncompressed''). For a detailed description see 3.3.2 Science modes of the EPIC cameras on http://xmm.esac.esa.int/external/xmm_user_support/documentation/uhb.
';
COMMENT ON COLUMN xmm3dr8.RA IS 'Corrected Right Ascension of the detection in degrees (J2000) after statistical correlation of the emldetect coordinates, RA_UNC and DEC_UNC, with the USNO B1.0, 2MASS or SDSS (DR8) optical/IR source catalogues using the SAS task catcorr (the process of correcting the coordinates is also referred to as field rectification). In cases where the cross-correlation is determined to be unreliable, no correction is applied and this value is therefore the same as RA_UNC (cf. Sec. 3XMM-DR8 UG, Sec. 3.4).
';
COMMENT ON COLUMN xmm3dr8.DEC IS 'Corrected Declination of the detection in degrees (J2000) after statistical correlation of the emldetect coordinates, RA_UNC and DEC_UNC, with the USNO B1.0, 2MASS or SDSS (DR8) optical/IR source catalogues using the SAS task catcorr (the process of correcting the coordinates is also referred to as field rectification). In cases where the cross-correlation is determined to be unreliable no correction is applied and this value is therefore the same as DEC_UNC (cf. Sec. 3XMM-DR8 UG, Sec. 3.4).
';
COMMENT ON COLUMN xmm3dr8.POSERR IS 'Total radial position uncertainty in arcseconds calculated by combining the statistical error RADEC_ERR and the error arising from the field rectification process SYSERRCC as follows: POSERR = SQRT ( RADEC_ERR^2 + SYSERRCC^2 ). For a 2-dimensional Gaussian error distribution, this radius reflects a 63% probability that the true source position lies within this radius of the measured position. The corresponding 68% confidence radius is 1.075*RADEC_ERR.
';
COMMENT ON COLUMN xmm3dr8.LII IS 'Galactic longitude of the detection in degrees corresponding to the (corrected) coordinates RA and DEC.
';
COMMENT ON COLUMN xmm3dr8.BII IS 'Galactic latitude of the detection in degrees corresponding to the (corrected) coordinates RA and DEC.
';
COMMENT ON COLUMN xmm3dr8.RADEC_ERR IS 'Radial error on the position, computed as sqrt(ra_err2 + dec_err2), in arcsecs, where ra_err and dec_err are the 1 sigma uncertainties in the RA and DEC coordinates respectively. The ra_err and dec_err quantities are provided, in image pixel units, in the X_IMA_ERR and Y_IMA_ERR columns, respectively, in the P*OMSRLI*.FIT pipeline product file of each observation - they are not provided directly in the catalogue.
';
COMMENT ON COLUMN xmm3dr8.SYSERRCC IS 'The estimated error arising from the field rectification process (in arcseconds). If the SAS task catcorr results in a statistically reliable cross-correlation with the USNO B1.0, 2MASS or SDSS (DR8) optical/IR catalogues, SYSERRCC combines the 1 sigma errors on the translational shifts in the RA (rashift_error) and DEC (decshift_error) directions, together with the rotational error component, derived from from the catalogue that yields the ''best'' solution, as follows: SYSERRCC = SQRT(rashift_error2 + decshift_error2 + (r * thetarot_error)2 ) where r is the radial off-axis angle of the detection from the spacecraft boresight in arcsecs and thetarot_error is the 1 sigma error on the rotational correction (in radians). Where catcorr fails to obtain a statistically reliable result, SYSERRCC is 1.5 arcseconds (see Sec. 3.4 for details). Note that rashift_error, decshift_error and thetarot_error are not provided separately in the catalogue.
';
COMMENT ON COLUMN xmm3dr8.REFCAT IS 'An integer code reflecting the absolute astrometric reference catalogue which gave the statistically ''best'' result for the field rectification process (from which the corrections are taken). It is 1 for the SDSS (DR9) catalogue, 2 for 2MASS and 3 for USNO B1.0. Where catcorr fails to produce a reliable solution, REFCAT is a negative number, indicating the cause of the failure. The failure codes are -1 = Too few matches (< 10), -2 = poor fit (goodness of fit parameter in catcorr < 5.0), -3 = error on the field positional rectification correction is > 0.75 arcseconds) (see Sec. 3XMM-DR8 UG, Sec. 3.4).
';
COMMENT ON COLUMN xmm3dr8.POSCOROK IS 'Signifies whether catcorr obtained a statistically reliable solution or not. This parameter is redundant in the sense that if REFCAT is positive, then a reliable solution was considered to have been found (see Sec. 3XMM-DR4 UG, Sec. 3.4).
';
COMMENT ON COLUMN xmm3dr8.RA_UNC IS 'Right Ascension of the detection in degrees (J2000) as determined by the SAS task emldetect by fitting a detection simultaneously in all cameras and energy bands.
';
COMMENT ON COLUMN xmm3dr8.DEC_UNC IS 'Declination of the detection in degrees (J2000) as determined by the SAS task emldetect by fitting a detection simultaneously in all cameras and energy bands.
';
COMMENT ON COLUMN xmm3dr8.CCDPN IS 'PN CCD number in which detection lies.
';
COMMENT ON COLUMN xmm3dr8.PN_RAWX IS 'X raw pixel position of detection in PN image.
';
COMMENT ON COLUMN xmm3dr8.PN_RAWY IS 'Y raw pixel position of detection in PN image.
';
COMMENT ON COLUMN xmm3dr8.CCDM1 IS 'M1 CCD number in which detection lies.
';
COMMENT ON COLUMN xmm3dr8.M1_RAWX IS 'X raw pixel position of detection in M1 image.
';
COMMENT ON COLUMN xmm3dr8.M1_RAWY IS 'Y raw pixel position of detection in M1 image.
';
COMMENT ON COLUMN xmm3dr8.CCDM2 IS 'M2 CCD number in which detection lies.
';
COMMENT ON COLUMN xmm3dr8.M2_RAWX IS 'X raw pixel position of detection in M2 image.
';
COMMENT ON COLUMN xmm3dr8.M2_RAWY IS 'Y raw pixel position of detection in M2 image.
';
COMMENT ON COLUMN xmm3dr8.EP_1_FLUX IS 'EPIC flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_1_FLUX_ERR IS 'Error on EPIC flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_2_FLUX IS 'EPIC flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_2_FLUX_ERR IS 'Error on EPIC flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_3_FLUX IS 'EPIC flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_3_FLUX_ERR IS 'Error on EPIC flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_4_FLUX IS 'EPIC flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_4_FLUX_ERR IS 'Error on EPIC flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_5_FLUX IS 'EPIC flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_5_FLUX_ERR IS 'Error on EPIC flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_8_FLUX IS 'EPIC flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_8_FLUX_ERR IS 'Error on EPIC flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_9_FLUX IS 'EPIC flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_9_FLUX_ERR IS 'Error on EPIC flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_FLUX IS 'PN flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_FLUX_ERR IS 'Error on PN flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_FLUX IS 'PN flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_FLUX_ERR IS 'Error on PN flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_FLUX IS 'PN flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_FLUX_ERR IS 'Error on PN flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_FLUX IS 'PN flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_FLUX_ERR IS 'Error on PN flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_FLUX IS 'PN flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_FLUX_ERR IS 'Error on PN flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_8_FLUX IS 'PN flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_8_FLUX_ERR IS 'Error on PN flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_9_FLUX IS 'PN flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_9_FLUX_ERR IS 'Error on PN flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_FLUX IS 'M1 flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_FLUX_ERR IS 'Error on M1 flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_FLUX IS 'M1 flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_FLUX_ERR IS 'Error on M1 flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_FLUX IS 'M1 flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_FLUX_ERR IS 'Error on M1 flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_FLUX IS 'M1 flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_FLUX_ERR IS 'Error on M1 flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_FLUX IS 'M1 flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_FLUX_ERR IS 'Error on M1 flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_8_FLUX IS 'M1 flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_8_FLUX_ERR IS 'Error on M1 flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_9_FLUX IS 'M1 flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_9_FLUX_ERR IS 'Error on M1 flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_FLUX IS 'M2 flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_FLUX_ERR IS 'Error on M2 flux in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_FLUX IS 'M2 flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_FLUX_ERR IS 'Error on M2 flux in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_FLUX IS 'M2 flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_FLUX_ERR IS 'Error on M2 flux in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_FLUX IS 'M2 flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_FLUX_ERR IS 'Error on M2 flux in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_FLUX IS 'M2 flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_FLUX_ERR IS 'Error on M2 flux in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_8_FLUX IS 'M2 flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_8_FLUX_ERR IS 'Error on M2 flux in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_9_FLUX IS 'M2 flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_9_FLUX_ERR IS 'Error on M2 flux in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_8_RATE IS 'EPIC count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_8_RATE_ERR IS 'Error on EPIC count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_9_RATE IS 'EPIC count rate in the 0.5-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_9_RATE_ERR IS 'Error on EPIC count rate in the 0.5-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_RATE IS 'PN count rate in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_RATE_ERR IS 'Error on PN count rate in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_RATE IS 'PN count rate in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_RATE_ERR IS 'Error on PN count rate in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_RATE IS 'PN count rate in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_RATE_ERR IS 'Error on PN count rate in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_RATE IS 'PN count rate in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_RATE_ERR IS 'Error on PN count rate in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_RATE IS 'PN count rate in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_RATE_ERR IS 'Error on PN count rate in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_8_RATE IS 'PN count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_8_RATE_ERR IS 'Error on PN count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_9_RATE IS 'PN count rate in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_9_RATE_ERR IS 'Error on PN count rate in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_RATE IS 'M1 count rate in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_RATE_ERR IS 'Error on M1 count rate in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_RATE IS 'M1 count rate in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_RATE_ERR IS 'Error on M1 count rate in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_RATE IS 'M1 count rate in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_RATE_ERR IS 'Error on M1 count rate in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_RATE IS 'M1 count rate in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_RATE_ERR IS 'Error on M1 count rate in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_RATE IS 'M1 count rate in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_RATE_ERR IS 'Error on M1 count rate in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_8_RATE IS 'M1 count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_8_RATE_ERR IS 'Error on M1 count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_9_RATE IS 'M1 count rate in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_9_RATE_ERR IS 'Error on M1 count rate in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_RATE IS 'M2 count rate in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_RATE_ERR IS 'Error on M2 count rate in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_RATE IS 'M2 count rate in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_RATE_ERR IS 'Error on M2 count rate in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_RATE IS 'M2 count rate in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_RATE_ERR IS 'Error on M2 count rate in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_RATE IS 'M2 count rate in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_RATE_ERR IS 'Error on M2 count rate in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_RATE IS 'M2 count rate in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_RATE_ERR IS 'Error on M2 count rate in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_8_RATE IS 'M2 count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_8_RATE_ERR IS 'Error on M2 count rate in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_9_RATE IS 'M2 count rate in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_9_RATE_ERR IS 'Error on M2 source count rate in the 0.5-4.5 keV band (XID band) (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_8_CTS IS 'EPIC source count in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_8_CTS_ERR IS 'Error on EPIC source count  in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_8_CTS IS 'PN source count in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_8_CTS_ERR IS 'Error on PN source count  in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_8_CTS IS 'M1 source count in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_8_CTS_ERR IS 'Error on M1 source count  in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_8_CTS IS 'M2 source count in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_8_CTS_ERR IS 'Error on M2 source count in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_8_DET_ML IS 'EPIC detection maximum likelihood value in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_9_DET_ML IS 'EPIC detection maximum likelihood value in the 0.5-4.5 keV band (XID band, for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_DET_ML IS 'PN detection maximum likelihood value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_DET_ML IS 'PN detection maximum likelihood value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_DET_ML IS 'PN detection maximum likelihood value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_DET_ML IS 'PN detection maximum likelihood value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_DET_ML IS 'PN detection maximum likelihood value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_8_DET_ML IS 'PN detection maximum likelihood value in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_9_DET_ML IS 'PN detection maximum likelihood value in the 0.5-4.5 keV band (XID band, for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_DET_ML IS 'M1 detection maximum likelihood value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_DET_ML IS 'M1 detection maximum likelihood value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_DET_ML IS 'M1 detection maximum likelihood value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_DET_ML IS 'M1 detection maximum likelihood value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_DET_ML IS 'M1 detection maximum likelihood value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_8_DET_ML IS 'M1 detection maximum likelihood value in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_9_DET_ML IS 'M1 detection maximum likelihood value in the 0.5-4.5 keV band (XID band, for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_DET_ML IS 'M2 detection maximum likelihood value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_DET_ML IS 'M2 detection maximum likelihood value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_DET_ML IS 'M2 detection maximum likelihood value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_DET_ML IS 'M2 detection maximum likelihood value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_DET_ML IS 'M2 detection maximum likelihood value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_8_DET_ML IS 'M2 detection maximum likelihood value in the 0.2-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_9_DET_ML IS 'M2 detection maximum likelihood value in the 0.5-4.5 keV band (XID band, for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_EXTENT IS 'Extent radius of a source detected as extended by the SAS task emldetect (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_EXTENT_ERR IS 'Error on the extent radius of a source detected as extended by the SAS task emldetect (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_EXTENT_ML IS 'Extent likelihood of a source detected as extended by the SAS task emldetect (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR1 IS 'EPIC hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR1_ERR IS 'Error on EPIC hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR2 IS 'EPIC hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR2_ERR IS 'Error on EPIC hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR3 IS 'EPIC hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR3_ERR IS 'Error on EPIC hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR4 IS 'EPIC hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.EP_HR4_ERR IS 'Error on EPIC hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR1 IS 'PN hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR1_ERR IS 'Error on PN hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR2 IS 'PN hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR2_ERR IS 'Error on PN hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR3 IS 'PN hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR3_ERR IS 'Error on PN hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR4 IS 'PN hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_HR4_ERR IS 'Error on PN hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR1 IS 'M1 hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR1_ERR IS 'Error on M1 hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR2 IS 'M1 hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR2_ERR IS 'Error on M1 hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR3 IS 'M1 hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR3_ERR IS 'Error on M1 hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR4 IS 'M1 hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_HR4_ERR IS 'Error on M1 hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR1 IS 'M2 hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR1_ERR IS 'Error on M2 hardness ratio between the 0.2-0.5 keV and 0.5-1.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR2 IS 'M2 hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR2_ERR IS 'Error on M2 hardness ratio between the 0.5-1.0 keV and 1.0-2.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR3 IS 'M2 hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR3_ERR IS 'Error on M2 hardness ratio between the 1.0-2.0 keV and 2.0-4.5 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR4 IS 'M2 hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_HR4_ERR IS 'Error on M2 hardness ratio between the 2.0-4.5 keV and 4.5-12.0 keV bands (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_EXP IS 'PN exposure map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_EXP IS 'PN exposure map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_EXP IS 'PN exposure map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_EXP IS 'PN exposure map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_EXP IS 'PN exposure map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_EXP IS 'M1 exposure map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_EXP IS 'M1 exposure map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_EXP IS 'M1 exposure map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_EXP IS 'M1 exposure map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_EXP IS 'M1 exposure map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_EXP IS 'M2 exposure map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_EXP IS 'M2 exposure map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_EXP IS 'M2 exposure map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_EXP IS 'M2 exposure map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_EXP IS 'M2 exposure map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_BG IS 'PN background map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_BG IS 'PN background map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_BG IS 'PN background map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_BG IS 'PN background map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_BG IS 'PN background map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_BG IS 'M1 background map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_BG IS 'M1 background map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_BG IS 'M1 background map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_BG IS 'M1 background map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_BG IS 'M1 background map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_BG IS 'M2 background map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_BG IS 'M2 background map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_BG IS 'M2 background map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_BG IS 'M2 background map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_BG IS 'M2 background map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_1_VIG IS 'PN vignetting map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_2_VIG IS 'PN vignetting map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_3_VIG IS 'PN vignetting map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_4_VIG IS 'PN vignetting map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_5_VIG IS 'PN vignetting map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_1_VIG IS 'M1 vignetting map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_2_VIG IS 'M1 vignetting map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_3_VIG IS 'M1 vignetting map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_4_VIG IS 'M1 vignetting map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M1_5_VIG IS 'M1 vignetting map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_1_VIG IS 'M2 vignetting map value in the 0.2-0.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_2_VIG IS 'M2 vignetting map value in the 0.5-1.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_3_VIG IS 'M2 vignetting map value in the 1.0-2.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_4_VIG IS 'M2 vignetting map value in the 2.0-4.5 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.M2_5_VIG IS 'M2 vignetting map value in the 4.5-12.0 keV band (for more details see http://xmmssc.irap.omp.eu/Catalogue/3XMM-DR8/col_srcpar.html)
';
COMMENT ON COLUMN xmm3dr8.PN_ONTIME IS 'The PN ontime value, given in seconds, is the total good exposure time (after GTI filtering) of the CCD where the detection is positioned. Note that some source positions fall into CCD gaps or outside of the detector and can therefore, in some cases, have a NULL.
';
COMMENT ON COLUMN xmm3dr8.M1_ONTIME IS 'The M1 ontime value, given in seconds, is the total good exposure time (after GTI filtering) of the CCD where the detection is positioned. Note that some source positions fall into CCD gaps or outside of the detector and can therefore, in some cases, have a NULL.
';
COMMENT ON COLUMN xmm3dr8.M2_ONTIME IS 'The M! ontime value, given in seconds, is the total good exposure time (after GTI filtering) of the CCD where the detection is positioned. Note that some source positions fall into CCD gaps or outside of the detector and can therefore, in some cases, have a NULL.
';
COMMENT ON COLUMN xmm3dr8.EP_ONTIME IS 'The EPIC ontime value, given in seconds, is the total good exposure time (after GTI filtering) of the CCD where the detection is positioned. Note that some source positions fall into CCD gaps or outside of the detector and can therefore, in some cases, have a NULL. The EPIC  value represents the largest ontime value of any of the individual cameras used.
';
COMMENT ON COLUMN xmm3dr8.PN_OFFAX IS 'The offaxis angle, given in arcminutes, is the distance between the detection position and the onaxis position on the respective detector. Note that the offaxis angle for a camera can be larger than 15 arcminutes when the detection is located outside the FOV of that camera.
';
COMMENT ON COLUMN xmm3dr8.M1_OFFAX IS 'The offaxis angle, given in arcminutes, is the distance between the detection position and the onaxis position on the respective detector. Note that the offaxis angle for a camera can be larger than 15 arcminutes when the detection is located outside the FOV of that camera.
';
COMMENT ON COLUMN xmm3dr8.M2_OFFAX IS 'The offaxis angle, given in arcminutes, is the distance between the detection position and the onaxis position on the respective detector. Note that the offaxis angle for a camera can be larger than 15 arcminutes when the detection is located outside the FOV of that camera.
';
COMMENT ON COLUMN xmm3dr8.EP_OFFAX IS 'The offaxis angle, given in arcminutes, is the distance between the detection position and the onaxis position on the respective detector. Note that the offaxis angle for a camera can be larger than 15 arcminutes when the detection is located outside the FOV of that camera. The EPIC value reflects the smallest of the individual camera values.
';
COMMENT ON COLUMN xmm3dr8.PN_MASKFRAC IS 'The maskfrac value is the PSF weighted mean of the detector coverage of a detection as derived from the detection mask (see 2XMM UG Sec. 3.1.2 b) for details). It depends slightly on energy, only the 0.2-12.0 keV band values are given here which are the minimum of the energy-dependent maskfrac values. Sources which have less than 0.15 of their PSF covered by the detector are considered as being not detected.
';
COMMENT ON COLUMN xmm3dr8.M1_MASKFRAC IS 'The maskfrac value is the PSF weighted mean of the detector coverage of a detection as derived from the detection mask (see 2XMM UG Sec. 3.1.2 b) for details). It depends slightly on energy, only the 0.2-12.0 keV band values are given here which are the minimum of the energy-dependent maskfrac values. Sources which have less than 0.15 of their PSF covered by the detector are considered as being not detected.
';
COMMENT ON COLUMN xmm3dr8.M2_MASKFRAC IS 'The maskfrac value is the PSF weighted mean of the detector coverage of a detection as derived from the detection mask (see 2XMM UG Sec. 3.1.2 b) for details). It depends slightly on energy, only the 0.2-12.0 keV band values are given here which are the minimum of the energy-dependent maskfrac values. Sources which have less than 0.15 of their PSF covered by the detector are considered as being not detected.
';
COMMENT ON COLUMN xmm3dr8.DIST_NN IS 'The distance to the nearest neighbouring detection given in arcseconds. They are derived by the SAS task emldetect (see 2XMM UG Sec. 3.1.2 f)). emldetect uses an internal threshold of 6 arseconds (before positional fitting) for splitting a source into two.
';
COMMENT ON COLUMN xmm3dr8.SUM_FLAG IS 'The summary flag of the detection is derived from the EPIC flag (EP_FLAG, see 2XMM UG Sec. 3.1.2h and Sec. 3.2.6 but note also sections 3XMM-DR8 UG 3.11 and 3.7). It is 0 if none of the nine flags was set, it is set to 1 if at least one of the warning flags (flag 1, 2, 3, 9) was set but no possible-spurious-detection flag (flag 7, 8), it is set to 2 if at least one of the possible-spurious-detection flags (flag 7, 8) was set but not the manual flag (flag 11), it is set to 3 if the manual flag (flag 11) was set but no possible-spurious-detection flags (flag 7, 8), it is set to 4 if the manual flag (flag 11) as well as one of the possible-spurious-detection flags (flag 7, 8) is set. The meaning is thus: 0 = good, 1 = source parameters may be affected, 2 = possibly spurious, 3 = located in a area where spurious detection may occur, 4 = located in a area where spurious detection may occur and possibly spurious. For details see 2XMM UG Sec. 3.2.7 but note that flag 12 is no longer used in 3XMM-DR8 (see section 3.11)
';
COMMENT ON COLUMN xmm3dr8.EP_FLAG IS 'EPIC flag string made of the flags 1-12 (counted from left to right): it combines the flags in each camera ((PN_FLAG, M1_FLAG, M2_FLAG), that is, a flag is set in EP_FLAG if at least one of the camera-dependent flags is set. See 2XMM UG Sec.3.1.2h) and Sec.3.2.6 for a detailed description of the flags.
';
COMMENT ON COLUMN xmm3dr8.PN_FLAG IS 'PN flag string made of the flags 1-12 (counted from left to right) for the PN source detection. A flag is set to True according to the conditions summarized in Tab.3.3a for the automatic flags, and Tab.3.3b for the manual flags. In cases where the camera was not used in the source detection a dash is given. Where a source was not detected by the PN the flags are all set to False (default).
';
COMMENT ON COLUMN xmm3dr8.M1_FLAG IS 'MOS1 flag string made of the flags 1-12 (counted from left to right) for the MOS1 source detection. A flag is set to True according to the conditions summarized in 2XMM UG Tab.3.3a for the automatic flags, and Tab.3.3b for the manual flags. In cases where the camera was not used in the source detection a dash is given. Where a source was not detected by the MOS1 the flags are all set to False (default).
';
COMMENT ON COLUMN xmm3dr8.M2_FLAG IS 'MOS2 flag string made of the flags 1-12 (counted from left to right) for the MOS2 source detection. A flag is set to True according to the conditions summarized in 2XMM UG Tab.3.3a for the automatic flags, and Tab.3.3b for the manual flags. In cases where the camera was not used in the source detection a dash is given. Where a source was not detected by the MOS2 the flags are all set to False (default).
';
COMMENT ON COLUMN xmm3dr8.TSERIES IS 'The flag is set to True if this detection has a time series made in at least one exposure (cf. Sec. 3.6).
';
COMMENT ON COLUMN xmm3dr8.SPECTRA IS 'The flag is set to True if this detection has a spectrum made in at least one exposure (cf. Sec. 3.6).
';
COMMENT ON COLUMN xmm3dr8.EP_CHI2PROB IS 'The chi square probability (based on the null hypothesis) that the time series of the source, as detected by any of the cameras, can be explained by a constant flux. The minimum value of the available camera probabilities (PN_CHI2PROB, M1_CHI2PROB, M2_CHI2PROB) is given.
';
COMMENT ON COLUMN xmm3dr8.PN_CHI2PROB IS 'The chi square probability (based on the null hypothesis) that the time series of the source, as detected by the PN camera, can be explained by a constant flux. The Pearson''s approximation to chi square for Poissonian data was used, in which the model is used as the estimator of its own variance (see the documentation of ekstest (https://xmm-tools.cosmos.esa.int/external/sas/current/doc/ekstest/ekstest.html#492) for a more detailed description). If more than one exposure (that is, time series) is available for this source the smallest value of probability was used. See 2XMM UG Sec. 3.1.4 for more details but note also changes described in 3XMM UG 3.6.
';
COMMENT ON COLUMN xmm3dr8.M1_CHI2PROB IS 'The chi square probability (based on the null hypothesis) that the time series of the source, as detected by the M1 camera, can be explained by a constant flux. The Pearson''s approximation to chi square for Poissonian data was used, in which the model is used as the estimator of its own variance (see the documentation of ekstest (https://xmm-tools.cosmos.esa.int/external/sas/current/doc/ekstest/ekstest.html#492) for a more detailed description). If more than one exposure (that is, time series) is available for this source the smallest value of probability was used. See 2XMM UG Sec.3.1.4 for more details but note also changes described in 3XMM UG 3.6.
';
COMMENT ON COLUMN xmm3dr8.M2_CHI2PROB IS 'The chi square probability (based on the null hypothesis) that the time series of the source, as detected by the M2 camera, can be explained by a constant flux. The Pearson''s approximation tochi square for Poissonian data was used, in which the model is used as the estimator of its own variance (see the documentation of ekstest (https://xmm-tools.cosmos.esa.int/external/sas/current/doc/ekstest/ekstest.html#492) for a more detailed description). If more than one exposure (that is, time series) is available for this source the smallest value of probability was used. See 2XMM UG Sec.3.1.4 for more details but note also changes described in 3XMM UG 3.6.
';
COMMENT ON COLUMN xmm3dr8.PN_FVAR IS 'The fractional excess variance measured in the PN timeseries of the detection. Where multiple PN exposures exist, it is for the one giving the largest probability of variability (PN_CHI2PROB). This quantity provides a measure of the amplitude of variability in the timeseries, above purely statistical fluctuations. See Sec.3.9 for more details.
';
COMMENT ON COLUMN xmm3dr8.PN_FVARERR IS 'The error on the fractional excess variance for the PN timeseries of the detection (PN_FVAR). See Sec. 3.9 for more details.
';
COMMENT ON COLUMN xmm3dr8.M1_FVAR IS 'The fractional excess variance measured in the MOS1 timeseries of the detection. Where multiple MOS1 exposures exist, it is for the one giving the largest probability of variability (M1_CHI2PROB). This quantity provides a measure of the amplitude of variability in the timeseries, above purely statistical fluctuations. See Sec. 3.9 for more details.
';
COMMENT ON COLUMN xmm3dr8.M1_FVARERR IS 'The error on the fractional excess variance for the MOS1 timeseries of the detection (M1_FVAR). See Sec. 3.9 for more details.
';
COMMENT ON COLUMN xmm3dr8.M2_FVAR IS 'The fractional excess variance measured in the MOS2 timeseries of the detection. Where multiple MOS2 exposures exist, it is for the one giving the largest probability of variability (M2_CHI2PROB). This quantity provides a measure of the amplitude of variability in the timeseries, above purely statistical fluctuations. See Sec. 3.9 for more details.
';
COMMENT ON COLUMN xmm3dr8.M2_FVARERR IS 'The error on the fractional excess variance for the MOS2 timeseries of the detection (M2_FVAR). See Sec. 3.9 for more details.
';
COMMENT ON COLUMN xmm3dr8.VAR_FLAG IS 'The flag is set to True if this source was detected as variable (chi2 probability < 1E-5, see PN_CHI2PROB, M1_CHI2PROB, M2_CHI2PROB) in at least one exposure (see 2XMM UG Sec. 3.2.8). Note that where a timeseries is not available or insufficient points are left in the timeseries after applying background flare GTIs, the value is set to NULL or Undefined
';
COMMENT ON COLUMN xmm3dr8.VAR_EXP_ID IS 'The exposure ID (''S'' or ''U'' followed by a three-digit number) of the exposure with the smallest chi2 probability is given here.
';
COMMENT ON COLUMN xmm3dr8.VAR_INST_ID IS 'The instrument ID (PN, M1, M2) of the exposure given in VAR_EXP_ID is listed here.
';
COMMENT ON COLUMN xmm3dr8.SC_RA IS 'The mean Right Ascension in degrees (J2000) of all the detections of the source SRCID (see RA) weighted by the positional errors POSERR.
';
COMMENT ON COLUMN xmm3dr8.SC_DEC IS 'The mean Declination in degrees (J2000) of all the detections of the source SRCID (see DEC) weighted by the positional errors POSERR.
';
COMMENT ON COLUMN xmm3dr8.SC_POSERR IS 'The radial error on the mean coordinates given in SC_RA and SC_DEC in arcseconds. It is the weighted mean of the POSERR values (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_DET_ML IS 'The total band detection likelihood of the source SRCID is the maximum of the likelihoods of all detections of this source (EP_8_DET_ML).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_1_FLUX IS 'The mean band 1 flux (0.2 - 0.5 keV) of all the detections of the source SRCID (see EP_1_FLUX) weighted by the errors (EP_1_FLUX_ERR), in erg/cm2/s.]
';
COMMENT ON COLUMN xmm3dr8.SC_EP_1_FLUX_ERR IS 'Error on the weighted mean band 1 flux in SC_EP_1_FLUX (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_2_FLUX IS 'The mean band 2 flux (0.5 - 1.0 keV) of all the detections of the source SRCID (see EP_2_FLUX) weighted by the errors (EP_2_FLUX_ERR), in erg/cm2/s.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_2_FLUX_ERR IS 'Error on the weighted mean band 2 flux in SC_EP_2_FLUX (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_3_FLUX IS 'The mean band 3 flux (1.0 - 2.0 keV) of all the detections of the source SRCID (see EP_3_FLUX) weighted by the errors (EP_3_FLUX_ERR), in erg/cm2/s.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_3_FLUX_ERR IS 'Error on the weighted mean band 3 flux in SC_EP_3_FLUX (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_4_FLUX IS 'The mean band 4 flux (2.0 - 4.5 keV) of all the detections of the source SRCID (see EP_4_FLUX) weighted by the errors (EP_4_FLUX_ERR), in erg/cm2/s.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_4_FLUX_ERR IS 'Error on the weighted mean band 4 flux in SC_EP_4_FLUX (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_5_FLUX IS 'The mean band 5 flux (4.5 - 12 keV) of all the detections of the source SRCID (see EP_5_FLUX) weighted by the errors (EP_5_FLUX_ERR), in erg/cm2/s.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_5_FLUX_ERR IS 'Error on the weighted mean band 5 flux in SC_EP_5_FLUX (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_8_FLUX IS 'The mean total band flux (0.2 - 12 keV) of all the detections of the source SRCID (see EP_8_FLUX) weighted by the errors (EP_8_FLUX_ERR), in erg/cm2/s.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_8_FLUX_ERR IS 'Error on the weighted mean total band flux in SC_EP_8_FLUX (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_9_FLUX IS 'The mean band 9 flux (0.5 - 4.5 keV) of all the detections of the source SRCID (see EP_9_FLUX) weighted by the errors (EP_9_FLUX_ERR), in erg/cm2/s.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_9_FLUX_ERR IS 'Error on the weighted mean band 9 flux in SC_EP_9_FLUX (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_HR1 IS 'The mean hardness ratio of the bands 1 and 2 of all the detections of the source SRCID (EP_HR1) weighted by the errors (EP_HR1_ERR).
';
COMMENT ON COLUMN xmm3dr8.SC_HR1_ERR IS 'Error on the weighted mean hardness ratio in SC_HR1 (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_HR2 IS 'The mean hardness ratio of the bands 2 and 3 of all the detections of the source SRCID (EP_HR2) weighted by the errors (EP_HR2_ERR).
';
COMMENT ON COLUMN xmm3dr8.SC_HR2_ERR IS 'Error on the weighted mean hardness ratio in SC_HR2 (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_HR3 IS 'The mean hardness ratio of the bands 3 and 4 of all the detections of the source SRCID (EP_HR3) weighted by the errors (EP_HR3_ERR).
';
COMMENT ON COLUMN xmm3dr8.SC_HR3_ERR IS 'Error on the weighted mean hardness ratio in SC_HR3 (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_HR4 IS 'The mean hardness ratio of the bands 4 and 5 of all the detections of the source SRCID (EP_HR4) weighted by the errors(EP_HR4_ERR).
';
COMMENT ON COLUMN xmm3dr8.SC_HR4_ERR IS 'Error on the weighted mean hardness ratio in SC_HR4 (see 2XMM UG, Sec. 3.2.4 for details).
';
COMMENT ON COLUMN xmm3dr8.SC_EXTENT IS 'The total band extent (arcseconds) of the source SRCID is the weighted average of the EPIC extents of all detections of this source (EP_EXTENT).
';
COMMENT ON COLUMN xmm3dr8.SC_EXT_ML IS 'The total band detection likelihood of the extended source SRCID is the largest of the extent likelihoods of all detections of this source (EP_EXTENT_ML).
';
COMMENT ON COLUMN xmm3dr8.SC_CHI2PROB IS 'The chi square probability (based on the null hypothesis) that the unique source SRCID as detected by any of the observations is constant, that is, the minimum value of the EPIC probabilities in each detection, EP_CHI2PROB, is given.
';
COMMENT ON COLUMN xmm3dr8.SC_FVAR IS 'The fractional excess variance of the unique source. It is the value corresponding to the exposure and instrument that shows the lowest probability of being constant (i.e. it is the PN_FVAR, M1_FVAR or M2_FVAR value corresponding to EP_CHI2PROB, SC_CHI2PROB.
';
COMMENT ON COLUMN xmm3dr8.SC_FVARERR IS 'The error on the fractional excess variance of the unique source. It is the value corresponds to the exposure and instrument that shows the lowest probability of being constant (i.e. it is the PN_FVARERR, M1_FVARERR or M2_FVARERR value corresponding to EP_CHI2PROB, SC_CHI2PROB.
';
COMMENT ON COLUMN xmm3dr8.SC_VAR_FLAG IS 'The variability flag for the unique source SRCID is set to VAR_FLAG of the most variable detection of this source. Note that where a timeseries is not available or insufficient points are left in the timeseries after applying background flare GTIs, the value is set to NULL or Undefined
';
COMMENT ON COLUMN xmm3dr8.SC_SUM_FLAG IS 'The summary flag for the unique source SRCID is taken to be the worst flag of all detections of this source (SUM_FLAG).
';
COMMENT ON COLUMN xmm3dr8.SC_EP_8_FMIN IS 'The minimum EPIC band 8 flux (EP_8_FLUX) amongst any of the constituent detections of the unique source. 
';
COMMENT ON COLUMN xmm3dr8.SC_EP_8_FMIN_ERR IS 'The error on the minimum EPIC band 8 flux (EP_8_FLUX_ERR) amongst any of the constituent detections of the unique source.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_8_FMAX IS 'The maximum EPIC band 8 flux (EP_8_FLUX) amongst any of the constituent detections of the unique source.
';
COMMENT ON COLUMN xmm3dr8.SC_EP_8_FMAX_ERR IS 'The error on the maximum EPIC band 8 flux (EP_8_FLUX_ERR) amongst any of the constituent detections of the unique source.
';
COMMENT ON COLUMN xmm3dr8.MJD_FIRST IS 'The MJD start date (MJD_START) of the earliest observation of any constituent detection of the unique source.
';
COMMENT ON COLUMN xmm3dr8.MJD_LAST IS 'The MJD end date (MJD_STOP) of the last observation of any constituent detection of the unique source.
';
COMMENT ON COLUMN xmm3dr8.N_DETECTIONS IS 'The number of detections of the unique source SRCID used to derive the combined values.
';
COMMENT ON COLUMN xmm3dr8.CONFUSED IS 'Normally set False, but set True when a given detection has a probability above zero of being associated with two or more distinct sources. The SRCID is that of the match with the highest probability, but there remains some uncertainty about which source is the correct match for the detection.
';
COMMENT ON COLUMN xmm3dr8.HIGH_BACKGROUND IS 'The flag is set to True if this detection comes from a field which, during manual screening, was considered to have a high background level which notably impacted on source detection (see Sec. 6.1.2).';

