VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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B/cfht/obscore Log of CFHT Exposures (CADC, 1979-)
The CFHT Observation logs (original column names in green) (2879998 rows)
  -c=344.368306521465001 +20.765152777853, eq=J2000, rs=0.005
Post annotation about this record
ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (344.368306521465001+20.765152777853)[FK5/J2000] (pos.angDistance)
_RAJ200022 57 28.39356515160 "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+20 45 54.5500002722 "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)
_RAB195022 55 01.52148907912 "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+20 29 51.1118754714 "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)
_Glon090.06199730108629 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-34.73124135569420 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?407960/407960o  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_nameGECKO  instrument name (meta.id;instr)
obs_id407960  internal dataset identifier (meta.id;meta.dataset)
dataproduct_typespectrum  type of product (meta.note)
calib_level1   calibration level (phot.calib;arith.zp)
obs_release_date 1999-10-11T07:41:50 s timestamp of date the data becomes publicly available (time.epoch)
target_name51 PEG  name of intended target (meta.id)
s_ra344.368306521465001 deg (i) right ascension of central coordinates (J2000) (s_ra) (pos.eq.ra;meta.main)
s_dec+20.765152777853 deg (i) declination of central coordinates (J2000) (s_dec) (pos.eq.dec;meta.main)
s_fov 0.058000660246098   size of the region covered, ∼diameter of minimum bounding circle (instr.fov;instr.pixel)
s_regionpolygon 344.3993212131415 20.765288881232237 344.3993211561012 20.765011103495212 344.33729188539814 20.765011108826116 344.33729182841245 20.765288886563226  region bounded by observation (obs.field)
s_resolution    typical spatial resolution (pos.angResolution)
s_xel1 2088   dimensions (number of pixels) along one spatial axis (meta.number)
s_xel2 10   dimensions (number of pixels) along the other spatial axis (meta.number)
t_min50731.3206940 d start time of observation (MJD) (t_min) (time.epoch)
t_max50731.3311107 d end time of observation (MJD) (t_max) (time.epoch)
t_exptime 900.00000000000000 s exposure time of observation (time.expo)
t_resolution 900.00000000000000   typical temporal resolution (time.resolution)
t_xel 1   dimensions (number of pixels) along the time axis (time.scale)
em_min  m start spectral coordinate value (instr.bandpass)
em_max  m stop spectral coordinate value (instr.bandpass)
em_res_power69000.0000000000   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-a227-11f8d4a2147d  (i) primary key (meta.id.part;meta.main)
lastmodified 2021-02-19T21:58:01 s (i) timestamp of last modification of the metadata UTC (UTC) (lastmodified) (time.epoch)
  
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Rules of usage of VizieR data

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