VizieR

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VizieR

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B/cfht/obscore Log of CFHT Exposures (CADC, 1979-)
The CFHT Observation logs (original column names in green) (2239798 rows)
  -c=010.679733816359599 +40.863791817191, eq=J2000, rs=0.005
Post annotation about this record
ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (010.679733816359599+40.863791817191)[FK5/J2000] (pos.angDistance)
_RAJ200000 42 43.13611592630 "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 51 49.6505418876 "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 39 59.04742976779 "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 35 24.0814810732 "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)
_Glon121.15440588053069 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-21.97786298474140 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)

obs_publisher_didivo://cadc.nrc.ca/CFHT?2300345/2300345o  publisher dataset identifier (meta.id;meta.dataset)
obs_collectionCFHT  short name for the data colection (meta.id;meta.dataset)
facility_nameCFHT 3.6m  telescope name (meta.id;instr.tel)
instrument_nameMegaPrime  instrument name (meta.id;instr)
obs_id2300345  internal dataset identifier (meta.id;meta.dataset)
dataproduct_typeimage  type of product (meta.note)
calib_level1   calibration level (phot.calib;arith.zp)
obs_release_date 2020-02-28T00:00:00 s timestamp of date the data becomes publicly available (time.epoch)
target_nameM32  name of intended target (meta.id)
s_ra010.679733816359599 deg (i) right ascension of central coordinates (J2000) (s_ra) (pos.eq.ra;meta.main)
s_dec+40.863791817191 deg (i) declination of central coordinates (J2000) (s_dec) (pos.eq.dec;meta.main)
s_fov 1.400463497278430   size of the region covered, ∼diameter of minimum bounding circle (instr.fov;instr.pixel)
s_regionPolygon ICRS 11.47598639967764 41.10225265101465 11.472727974226904 40.62294576504353 11.327079077936926 40.36484470114528 10.037507881336788 40.361466869307606 9.889042319126387 40.619970715839806 9.881503759509725 41.099627397483516 10.023268152950365 41.3593640945154 11.33103795317245 41.362503533292205  region bounded by observation (obs.field)
s_resolution    typical spatial resolution (pos.angResolution)
s_xel123169   dimensions (number of pixels) along one spatial axis (meta.number)
s_xel219274   dimensions (number of pixels) along the other spatial axis (meta.number)
t_min58366.5699368 d start time of observation (MJD) (t_min) (time.epoch)
t_max58366.5714433 d end time of observation (MJD) (t_max) (time.epoch)
t_exptime 130.15800476074219 s exposure time of observation (time.expo)
t_resolution 130.15800476074219   typical temporal resolution (time.resolution)
t_xel 1   dimensions (number of pixels) along the time axis (time.scale)
em_min 3.96900000000e-07 m start spectral coordinate value (instr.bandpass)
em_max 5.53900000000e-07 m stop spectral coordinate value (instr.bandpass)
em_res_power 3.02802991867   typical spectral resolution (spect.resolution)
em_xel 1   dimensions (number of pixels) along the energy axis (phys.size)
em_ucd   UCD describing the spectral axis (meta.number)
pol_states   polarization states present in the data (phys.polarization)
pol_xel    dimensions (number of pixels) along the polarization axis (phys.size)
o_ucdphot.count  UCD describing the observable axis (pixel values) (meta.number)
access_urlDatalink  URL to download the data (meta.ref.url)
access_formatapplication/x-votable+xml;content=datalink  format of the data file (meta.note)
access_estsize    estimated size of the download (meta.number)
core_id00000000-0000-0000-fabd-0165aa009a2d  (i) primary key (meta.id.part;meta.main)
lastmodified 2018-12-16T00:44:30 s (i) timestamp of last modification of the metadata UTC (UTC) (lastmodified) (time.epoch)
  
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