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) (2367613 rows)
  -c=012.200424108902499 +31.955958333351, eq=J2000, rs=0.005
Post annotation about this record
ColumnValue  Explain   (UCD)
_r0.000 arcsec Distance from center (012.200424108902501+31.955958333351)[FK5/J2000] (pos.angDistance)
_RAJ200000 48 48.10178613660 "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+31 57 21.4500000647 "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 46 05.81409663806 "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+31 41 00.9681291062 "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)
_Glon122.28015774990601 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-30.91245425991644 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?412051/412051o  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_nameMOS  instrument name (meta.id;instr)
obs_id412051  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 1999-11-25T07:19:20 s timestamp of date the data becomes publicly available (time.epoch)
target_nameMK 348  name of intended target (meta.id)
s_ra012.200424108902499 deg (i) right ascension of central coordinates (J2000) (s_ra) (pos.eq.ra;meta.main)
s_dec+31.955958333351 deg (i) declination of central coordinates (J2000) (s_dec) (pos.eq.dec;meta.main)
s_fov 0.061672291133059   size of the region covered, ∼diameter of minimum bounding circle (instr.fov;instr.pixel)
s_regionpolygon 12.236764495315121 31.95553647750168 12.16408372191989 31.955536505475727 12.1640833926547 31.95636983864189 12.236764825471434 31.956369810666942  region bounded by observation (obs.field)
s_resolution    typical spatial resolution (pos.angResolution)
s_xel1 740   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_min50776.3050460 d start time of observation (MJD) (t_min) (time.epoch)
t_max50776.3119904 d end time of observation (MJD) (t_max) (time.epoch)
t_exptime 600.00000000000000 s exposure time of observation (time.expo)
t_resolution 600.00000000000000   typical temporal resolution (time.resolution)
t_xel 1   dimensions (number of pixels) along the time axis (time.scale)
em_min 3.50000000000e-07 m start spectral coordinate value (instr.bandpass)
em_max 8.00000000000e-07 m stop spectral coordinate value (instr.bandpass)
em_res_power 138.88900756836   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-bc85-11f9660194be  (i) primary key (meta.id.part;meta.main)
lastmodified 2017-11-25T02:12:53 s (i) timestamp of last modification of the metadata UTC (UTC) (lastmodified) (time.epoch)
  
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