Obslist (xmm4_dr11s.obslist)

Description

The list of observation provides main parameters of all 8,292 observations from which the stacked catalogue 4XMM-DR11s was compiled. They were taken between 2000 February 3 and 2020 December 17, overlap by at least one arcminute in radius, and are not affected by very high background emission. The table includes their nominal coordinates, technical setup, observation dates, and information on the pre-processing assessment of background level and astrometry.

Attribution

Users of the catalogue are kindly asked to reference the catalogue papers Traulsen et al. 2020, A&A 641, A137 and 2019, A&A 624, A77, and to include the policy statement:

This research has made use of data obtained from the 4XMM XMM-Newton serendipitous stacked source catalogue 4XMM-DR10s compiled by the institutes of the XMM-Newton Survey Science Centre selected by ESA.

Columns

Name Type UCD Unit Description
obs_id char meta.id
meta.main

XMM-Newton observation identifier
stack_id short meta.id
meta.ref

Stack identifier
n_observations short meta.number

Number of observations in the stack
n_contrib_max short meta.number

Maximum number of directly overlapping observations in the stack
n_sources_stack short meta.number

Number of sources detected in the whole stack
ref_ra double pos.eq.ra deg

Reference coordinates of the stack: Right ascension
ref_dec double pos.eq.dec deg

Reference coordinates of the stack: Declination
area_est double phys.angArea deg**2

Approximate area covered by the stack
ra double pos.eq.ra
meta.main 		deg

Mean pointing right ascenscion of the telescopes optical axis
dec double pos.eq.dec
meta.main 		deg

Mean pointing declination of the telescopes optical axis
lii double pos.galactic.lon deg

Mean galactic longitude of the telescopes optical axis
bii double pos.galactic.lat deg

Mean galactic latitude of the telescopes optical axis
pa double pos.posAng deg

Mean position angle of the spacecraft
revolut short time.epoch
meta.main

XMM-Newton revolution number of the observation
mjd_start float time.start
meta.main 		d

Modified Julian Date JD-2400000.5 of the observation start
mjd_stop float time.end
meta.main 		d

Modified Julian Date JD-2400000.5 of the observation end
obs_class short meta.code.qual

Quality classification in the catalogue from individual observations
target char src
meta.main

Name of the main target of the observation
prop_description char src.class

Proposal description of the main target (XSA)
prop_type char meta.code.class

Type of the proposal (XSA)
prop_category char meta.code.class

Category of the proposal (XSA)
astcorr boolean meta.code.qual

Flag: observation was astrometrically corrected
cc_poffset double pos.angDistance arcsec

catcorr total position shift of the field
cc_pofferr double stat.error
pos.angDistance 		arcsec

1-sigma error on CC_POFFSET
cc_raoffset double pos.angDistance arcsec

catcorr shift of the right ascension in the field
cc_raofferr double stat.error
pos.angDistance 		arcsec

1-sigma error on CC_RAOFFSET
cc_deoffset double pos.angDistance arcsec

catcorr shift of the declination in the field
cc_deofferr double stat.error
pos.angDistance 		arcsec

1-sigma error on CC_DEOFFSET
cc_rot_corr double pos.posAng deg

catcorr shift of the position angle in the field
cc_rot_err double stat.error
pos.posAng 		deg

1-sigma error on CC_ROT_CORR
cc_refcat char meta.ref

catcorr reference catalogue
cc_nmatches short meta.number

catcorr number of usable matches with the reference catalogue
pn_submode char instr.setup

EPIC/pn submode used for the observation
m1_submode char instr.setup

EPIC/MOS1 submode used for the observation
m2_submode char instr.setup

EPIC/MOS2 submode used for the observation
pn_filter char instr.filter

EPIC/pn filter used for the observation
m1_filter char instr.filter

EPIC/MOS1 filter used for the observation
m2_filter char instr.filter

EPIC/MOS2 filter used for the observation
pn_ontime double obs.exposure s

EPIC/pn exposure time in seconds
m1_ontime double obs.exposure s

EPIC/MOS1 exposure time in seconds
m2_ontime double obs.exposure s

EPIC/MOS2 exposure time in seconds
pn_bkg_cprob double stat.probability

EPIC/pn Cauchy probability derived from PN_BKG_CRAREA
m1_bkg_cprob double stat.probability

EPIC/MOS1 Cauchy probability derived from M1_BKG_CRAREA
m2_bkg_cprob double stat.probability

EPIC/MOS2 Cauchy probability derived from M2_BKG_CRAREA
pn_bkg_crarea double arith.rate photon".s**-1"

EPIC/pn background rate per area
m1_bkg_crarea double arith.rate photon".s**-1.arcsec**-2"

EPIC/MOS1 background rate per area
m2_bkg_crarea double arith.rate photon".s**-1.arcsec**-2"

EPIC/MOS2 background rate per area