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) (2041782 rows)
  -c=045.002922222198002 +00.033894444441, eq=J2000, rs=0.005
Post annotation about this record
ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (045.002922222197995+00.033894444441)[FK5/J2000] (pos.angDistance)
_RAJ200003 00 00.70133332752 "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+00 02 02.0199999873 "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)
_RAB195002 57 26.99989504204 "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)
_DEB1950-00 09 50.4713321643 "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)
_Glon176.92724318880133 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-48.87702551172909 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?207776/207776o  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_nameREDEYE  instrument name (meta.id;instr)
obs_id207776  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 1995-09-04T14:15:15 s timestamp of date the data becomes publicly available (time.epoch)
target_name"03H FIELD STRIP N2 NY=-25 56 EXPOSURES OF 30"""  name of intended target (meta.id)
s_ra045.002922222198002 deg (i) right ascension of central coordinates (J2000) (s_ra) (pos.eq.ra;meta.main)
s_dec+00.033894444441 deg (i) declination of central coordinates (J2000) (s_dec) (pos.eq.dec;meta.main)
s_fov 0.004022652261246   size of the region covered, ∼diameter of minimum bounding circle (instr.fov;instr.pixel)
s_regionpolygon 45.00149999980654 0.032472222212591446 45.00149999976494 0.03531666665558487 45.00434444474828 0.03531666665541534 45.004344444706355 0.03247222221243644  region bounded by observation (obs.field)
s_resolution    typical spatial resolution (pos.angResolution)
s_xel1 256   dimensions (number of pixels) along one spatial axis (meta.number)
s_xel2 256   dimensions (number of pixels) along the other spatial axis (meta.number)
t_min49233.5938850 d start time of observation (MJD) (t_min) (time.epoch)
t_max49233.5942311 d end time of observation (MJD) (t_max) (time.epoch)
t_exptime 29.89999961853027 s exposure time of observation (time.expo)
t_resolution 29.89999961853027   typical temporal resolution (time.resolution)
t_xel 1   dimensions (number of pixels) along the time axis (time.scale)
em_min 1.97400000000e-06 m start spectral coordinate value (instr.bandpass)
em_max 2.29000000000e-06 m stop spectral coordinate value (instr.bandpass)
em_res_power 6.74684000015   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_id00000000-0000-0000-0cd5-11ddd6933c3c  (i) primary key (meta.id.part;meta.main)
lastmodified 2017-11-23T00:57:59 s (i) timestamp of last modification of the metadata UTC (UTC) (lastmodified) (time.epoch)
  
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