XMM-Newton Science Analysis System


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FITS columns used in processing

Table 2: Required columns in the input source list

Columns	Data-Type	Mandatory/Optional	Note
SRC_NUM	Double	Mandatory
RA	Double	Optional	Recommended.
DEC	Double	Optional	Recommended.

Table 3: Required columns in the (optional) external catalogue

Columns	Data-Type	Mandatory/Optional	Note
OBS_ID	String	Mandatory
SRC_NUM	Int32	Mandatory
IAUNAME	String	Optional	Source name
DETID	Int32	Optional	Detection ID
SRCID	Int32	Optional	Unique source ID
RA	Double	Optional	Usually unnecessary.
DEC	Double	Optional	Usually unnecessary.

Table 4: Name of the possible column names

	Type	Names in order of priority
Observation ID	String	OBS_ID
Observation ID	Integer32	OBSID
Source ID	Integer32	SRC_NUM	SUM_SRC_NUM
Detection ID	Integer32	DETID	SRC_NUM
Detection ID	Integer32	SRCID	SRC_ID
Is the source in?	Logical	INCATFLG
Right Ascension	Double	RA	RA_UNC	RA_CORR
Declination	Double	DEC	DEC_UNC	DEC_CORR
Source name	String	IAUNAME	XMMSRCNAME

Note that the lower-case column names are also accepted.

Table 2 and Table 3 tabulate the column names used by this task. Some other column names are also permitted (See Table 4 for the list of candidates).

The order of the priority, in which each source parameter (obviously except for OBS_ID and SRC_NUM) is read, is as follows:

1. Command-line argument (such as, RA and DEC)
2. External catalogue
3. Source list.

This may be of particular importance when an external catalogue is given as a command-line argument, where the source-list is already ingested with some columns, such as IAUNAME.