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VizieR

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J/A+A/434/483/table1 An XMM-Newton survey of M 31 (Pietsch+, 2005)
log of archival M 31 observation overlapping with the optical D25 ellipse (proposal numbers 010927, 011257 and 015158) (11 rows)
  recno=7
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ColumnValue  Explain   (UCD)
_RAJ200000 41 32.700 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+40 54 38.00 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195000 38 48.884 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+40 38 11.52 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon120.917337 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-21.922493 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
7recno 7  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

FieldSouth 1  M31 field designation (meta.id;meta.main)
M31IDs1  (i) Code for the field (obs.field)
ObsID0112570201   Observation identification number (meta.id;obs)
ObsDate2002-01-12 "Y:M:D" Observation date (time.epoch;obs)
n_ObsDate/13  Second day of observation (meta.note)
RAJ200000 41 32.7 "h:m:s" (i) Pointing direction right ascension, J2000 (pos.eq.ra;meta.main)
DEJ2000+40 54 38 "d:m:s" (i) Pointing direction declination, J2000 (pos.eq.dec;meta.main)
ORA-2.1 arcmin Offset in right ascension (Note 1)   (pos.eq.ra;arith.diff)
ODE-1.7 arcmin Offset in declination (Note 1)   (pos.eq.dec;arith.diff)
PNFilterthin  EPIC PN filter (Note 2)   (instr.bandpass)
PNExpT53.45 ks PN exposition time after screening for high background (time.duration;obs.exposure)
PNExpTC47.00 ks PN exposition time of colour image (phot.color;obs.exposure)
M1Filterthin  EPIC MOS1 filter (Note 2)   (instr.bandpass)
M1ExpT53.76 ks MOS1 exposition time after screening for high background (time.duration;obs.exposure)
M1ExpTC51.83 ks MOS1 exposition time of colour image (time.duration;obs.exposure)
M2Filterthin  EPIC MOS2 filter (Note 2)   (instr.bandpass)
M2ExpT53.73 ks MOS2 exposition time after screening for high background (time.duration;obs.exposure)
M2ExpTC51.84 ks MOS2 exposition time of colour image (time.duration;obs.exposure)
  
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