- SC_RA (D)
[deg]
-
The mean Right Ascension in degrees (J2000) of all the detections of
the source SRCID (see RA) weighted by the positional errors
POSERR.
-
SC_DEC (D)
[deg]
-
The mean Declination in degrees (J2000) of all the detections of the
source SRCID (see DEC) weighted by the positional errors
POSERR.
-
SC_POSERR (E) [arcsec]
-
The error of the weighted mean position given in SC_RA and SC_DEC in arseconds (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_EP_1_FLUX (E)
[erg/cm2/s]
-
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.]
-
SC_EP_1_FLUX_ERR (E) [erg/cm2/s]
-
Error on the weighted mean band 1 flux in SC_EP_1_FLUX (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_EP_2_FLUX (E)
[erg/cm2/s]
-
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.
-
SC_EP_2_FLUX_ERR (E) [erg/cm2/s]
-
Error on the weighted mean band 2 flux in SC_EP_2_FLUX (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_EP_3_FLUX (E)
[erg/cm2/s]
-
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.
-
SC_EP_3_FLUX_ERR (E) [erg/cm2/s]
-
Error on the weighted mean band 3 flux in SC_EP_3_FLUX (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_EP_4_FLUX (E)
[erg/cm2/s]
-
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.
-
SC_EP_4_FLUX_ERR (E) [erg/cm2/s]
-
Error on the weighted mean band 4 flux in SC_EP_4_FLUX (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_EP_5_FLUX (E)
[erg/cm2/s]
-
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.
-
SC_EP_5_FLUX_ERR (E) [erg/cm2/s]
-
Error on the weighted mean band 5 flux in SC_EP_5_FLUX (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_EP_8_FLUX (E)
[erg/cm2/s]
-
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.
-
SC_EP_8_FLUX_ERR (E) [erg/cm2/s]
-
Error on the weighted mean total band flux in SC_EP_8_FLUX (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_EP_9_FLUX (E)
[erg/cm2/s]
-
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.
-
SC_EP_9_FLUX_ERR (E) [erg/cm2/s]
-
Error on the weighted mean band 9 flux in SC_EP_9_FLUX (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_HR1
(E)
-
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).
-
SC_HR1_ERR (E)
-
Error on the weighted mean hardness ratio in SC_HR1 (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_HR2
(E)
-
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).
-
SC_HR2_ERR (E)
-
Error on the weighted mean hardness ratio in SC_HR2 (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_HR3
(E)
-
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).
-
SC_HR3_ERR (E)
-
Error on the weighted mean hardness ratio in SC_HR3 (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_HR4
(E)
-
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).
-
SC_HR4_ERR (E)
-
Error on the weighted mean hardness ratio in SC_HR4 (see 2XMM UG, Sec. 3.2.4 for
details).
-
SC_DET_ML
(E)
-
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).
-
SC_EXTENT
(E)
-
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).
This column is new in 2XMMi-DR3.
-
SC_EXT_ML
(E)
-
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).
In 2XMMi-DR3, the definition of this column is
changed from that in 2XMMi (in 2XMMi, it was the average of the
EP_EXTENT_ML values).
-
SC_CHI2PROB (E)
-
The χ2 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.
-
SC_VAR_FLAG (L)
-
The variability flag for the unique source SRCID is set to VAR_FLAG of the most variable detection of
this source.
-
SC_SUM_FLAG (J)
-
The summary flag for the unique source SRCID is taken to be the worst flag of all
detections of this source (SUM_FLAG).
-
N_DETECTIONS (J)
-
The number of detections of the unique source SRCID used to derive the combined
values.
-
SC_DR_FIRST (J)
-
This flag indicates in which catalogue in the 2XMM catalogue series
(starting from 2XMM) this unique source first appeared. The flag is DR1
for 2XMM, DR2 for 2XMMi and DR3 for the present 2XMMi-DR3 catalogue.
This column is new in 2XMMi-DR3.
-
SC_DR_LAST (J)
-
This flag indicates in which catalogue in the 2XMM catalogue series
(starting from 2XMM) the parameters of this unique source were last
updated (e.g. due to the inclusion of one or more new detections which
can add to, or even split, the source). The flag is DR1 for 2XMM, DR2
for 2XMMi and DR3 for the present 2XMMi-DR3 catalogue (see Sec.3.2
This column is new in 2XMMi-DR3.
-
CONFUSED (J)
-
This flag (True/False) signifies that
the 3-sigma error circle of a detection within this unique source
overlaps the 3-sigma error circle of a nearby unique source. As such,
it is an indicator of possible confusion (uncertainty) about the
assignment of detections between sources.
This column is new in 2XMMi-DR3.
Two columns,
SC_CHFLAG1 and
SC_CHFLAG2, present in 2XMMi, are dropped from 2XMMi-DR3, being
replaced by SC_DR_FIRST and
SC_DR_LAST which have a simpler
interpretation