Identification of the source (7 columns)
- SRCID (Long)
-
A unique number assigned to a unique source determined through source detection on the stack.
The SRCID assignments in 5XMM bear no relation to those in 4XMM.
- IAUNAME (String)
-
The IAU name assigned to the unique SRCID (see 3XMM-DR4 UG, Sec. 3.8.1 ).
- OBS_ID (String)
-
The XMM-Newton observation identification.
-
PPS_SRCNUM (Integer) SAS task
srcmatch
-
The (decimal) source number attributed to a detection by the automatic pipeline processing; when expressed in the hexadecimal system it identifies the
source-specific product files belonging to this detection (2XMM UG Appendix A.1).
- N_OBS (Integer)
-
The total number of observations per stack. The column value is set to null in the observation-specific rows and can thus be used to select the summary source rows per source, for example by the expression "N_OBS > 0".
-
N_CONTRIB (Integer)
-
The number of contributing observations for which the source position is inside the field of view. The column value is set to null in the observation-specific rows and can thus be used to select the summary source rows per source, for example by the expression "N_CONTRIB > 0".
- N_EXP (Integer)
- The number of exposures, i.e. the number of active instruments, and is set in each row of the catalogue.