VizieR

CfA VizieR . ADAC VizieR . CADC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . Beijing (Ch) VizieR .

VizieR

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B/cfht/obscore Log of CFHT Exposures (CADC, 1979-)
The CFHT Observation logs (original column names in green) (2368766 rows)
  -c=346.869723223332983 +21.133624999961, eq=J2000, rs=0.005
Post annotation about this record
ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (346.869723223332983+21.133624999961)[FK5/J2000] (pos.angDistance)
_RAJ200023 07 28.73357359991 "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+21 08 01.0499998585 "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)
_RAB195023 05 00.91497643976 "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 51 46.5334565697 "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)
_Glon092.76392206361101 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-35.57569624665808 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?756023/756023o  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_id756023  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 2005-07-31T13:23:42 s timestamp of date the data becomes publicly available (time.epoch)
target_nameHD 218396  name of intended target (meta.id)
s_ra346.869723223332983 deg (i) right ascension of central coordinates (J2000) (s_ra) (pos.eq.ra;meta.main)
s_dec+21.133624999961 deg (i) declination of central coordinates (J2000) (s_dec) (pos.eq.dec;meta.main)
s_fov 0.129008511054712   size of the region covered, ∼diameter of minimum bounding circle (instr.fov;instr.pixel)
s_regionpolygon 346.8727026021697 21.1980693908628 346.8726999996642 21.06918055650216 346.8667464341633 21.06918055702097 346.86674385755344 21.19806939138506  region bounded by observation (obs.field)
s_resolution    typical spatial resolution (pos.angResolution)
s_xel1 200   dimensions (number of pixels) along one spatial axis (meta.number)
s_xel2 4640   dimensions (number of pixels) along the other spatial axis (meta.number)
t_min53216.5273400 d start time of observation (MJD) (t_min) (time.epoch)
t_max53216.5585900 d end time of observation (MJD) (t_max) (time.epoch)
t_exptime 2700.00000000000000 s exposure time of observation (time.expo)
t_resolution 2700.00000000000000   typical temporal resolution (time.resolution)
t_xel 1   dimensions (number of pixels) along the time axis (time.scale)
em_min 7.70000000000e-07 m start spectral coordinate value (instr.bandpass)
em_max 7.82000000000e-07 m stop spectral coordinate value (instr.bandpass)
em_res_power 64.66670227051   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_id00000000-0000-0000-2779-122a3d857586  (i) primary key (meta.id.part;meta.main)
lastmodified 2017-11-29T19:18:15 s (i) timestamp of last modification of the metadata UTC (UTC) (lastmodified) (time.epoch)
  
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