I/327 Carlsberg Meridian Catalog 15 (CMC15) (CMC, 2011)
Carlsberg Meridian Catalog Number 15
Niels Bohr Institute, University of Copenhagen,
Institute of Astronomy, Cambridge, UK,
Real Instituto y Observatorio de la Armada en San Fernando
<Observations from March 1999 to March 2011>
ADC_Keywords: Meridian observations ; Positional data ; Photometry, CCD
Description:
The Carlsberg Meridian Telescope (formerly the Carlsberg Automatic
Meridian Circle) is dedicated to carrying out high-precision optical
astrometry. It underwent a major upgrade in March 1999, with the
installation of a 2kx2k CCD camera was installed with a Sloan r'
filter operating in a drift scan mode. With the new system, the
magnitude limit is 17 (r'mag) and the positional accuracy is in the
range 35 to 100 mas. The resulting survey is aimed to provide an
astrometric and photometric catalogue in the declination range -40
to +50 degrees.
This catalogue is the result of all the observations made between
March 1999 and March 2011 in the declination band -40 to +50 degrees.
Further information can be found in the documentation at the web site
http://svo2.cab.inta-csic.es/vocats/cmc15/
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
cmc15.sam 101 1000 Sample catalog output
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See also:
http://www.ast.cam.ac.uk/~dwe/SRF/camc.html : Home page for the
Carlsberg Meridian Telescope
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
I/289 : UCAC2 Catalogue (Zacharias+ 2004)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
Byte-by-byte Description of file: cmc15.sam
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Bytes Format Units Label Explanations
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1- 15 A15 --- CMC15 CMC15 Identifier
17- 26 F10.6 deg RAdeg Right Ascension (ICRS)
28- 37 F10.6 deg DEdeg Declination (ICRS)
39- 44 F6.3 mag r'mag r' magnitude (ABν scale) (1)
46- 46 A1 --- pflag ? [:] Flag on r'mag when non-photometric
48- 48 A1 --- f_CMC15 ? [R] Flag for rejected source
50- 51 I2 --- Nt Total number of observations
53- 54 I2 --- Na Number of astrometric observations
56- 57 I2 --- Np Number of photometric observations
59- 63 F5.3 arcsec e_RAdeg Standard deviation of RA (2)
65- 69 F5.3 arcsec e_DEdeg Standard deviation of DE (2)
71- 75 F5.3 mag e_r'mag Mean error on r' magnitude (2)
77- 80 I4 d MJD-51263 Mean epoch of astrometry, as days
since 26-3-1999 (=MJD-51263, or JD-2451263.5)
82- 87 F6.3 mag Jmag ? 2MASS J magnitude (1.25um) (3)
89- 94 F6.3 mag Hmag ? 2MASS H magnitude (1.65um) (3)
96-101 F6.3 mag Ksmag ? 2MASS Ks magnitude (2.17um) (3)
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Note (1): Magnitude close the Sloan r' bandpass
(passband around 550-690nm)
Note (2): 0.000 indicates the star has been observed only once in that
coordinate or magnitude. Other values may have been rejected for some
reasons (e.g. image too elliptical, non photometric night) or because
the star has really been observed only once.
Note (3): if no match with 2MASS has been found or made then all the 2MASS
photometry is set to zero. If the respective H and Ks quality flags
(ph_qual) were not A then these magnitudes are set to zero.
2MASS Point Source catalog, see Cat. II/246, or
http://www.ipac.caltech.edu/2mass/releases/allsky
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(End) Laurent Cambresy [CDS] 07-Mar-2014