Access to Astronomical Catalogues

J/MNRAS/276/33      UBVRI CCD sequences for wide-field surveys. I. (Boyle+ 1995)
Faint UBVRI CCD sequences for wide-field surveys. I.
      Boyle B.J., Shanks T., Croom S.M.
     <Mon. Not. R. Astron. Soc. 276, 33 (1995)>
     =1995MNRAS.276...33B       (SIMBAD/NED BibCode)
ADC_Keywords: Photometry, UBVRI ; Surveys


Abstract:
    We present the first results of a campaign to secure deep UBVRI CCD
    photometric calibration in all UK Schmidt equatorial fields with
    galactic latitudes |b|≲50°. In this paper we provide information
    on deep BVRI sequences (B<22mag) in 14 UK Schmidt survey fields
    centred at declination=0°. Deep U sequences have been obtained for
    11 of these fields.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
tables.dat        96     2915   UBVRI photometry


See also:
 J/MNRAS/306/592 : UBVR CCD sequences for wide-field surveys. II. (Croom+, 1999)


Byte-by-byte Description of file: tables.dat

   Bytes Format Units   Label    Explanations

   1-  2  I2    h       RAh      Right ascension (1950)
   4-  5  I2    min     RAm      Right ascension (1950)
   7- 12  F6.3  s       RAs      Right ascension (1950)
      14  A1    ---     DE-      Declination sign (1950)
  15- 16  I2    deg     DEd      Declination (1950)
  18- 19  I2    arcmin  DEm      Declination (1950)
  21- 25  F5.2  arcsec  DEs      Declination (1950)
  27- 31  F5.2  mag     Bmag     B magnitude
  33- 36  F4.2  mag     e_Bmag   rms uncertainty on Bmag
  38- 42  F5.2  ---     s/g      Star galaxy separation parameter B_5_-B-4_ (1)
  44- 48  F5.2  mag     Umag     ?=9.99 U magnitude
  50- 53  F4.2  mag     e_Umag   ?=9.99 rms uncertainty on Umag
  55- 59  F5.2  mag     Vmag     V magnitude
  61- 64  F4.2  mag     e_Vmag   rms uncertainty on Vmag
  66- 70  F5.2  mag     Rmag     ?=9.99 R magnitude
  72- 75  F4.2  mag     e_Rmag   ?=9.99 rms uncertainty on Rmag
  77- 81  F5.2  mag     Imag     ?=9.99 I magnitude
  83- 86  F4.2  mag     e_Imag   ?=9.99 rms uncertainty on Imag

Note (1): Generally, objects with B5-B4←0.03 will be galaxies.
           B5-B4 is the normalized B frame 4- to 5-pixels
           aperture correction.


History: Copied on 22-Apr-1999 at
          http://icstar5.ph.ic.ac.uk:80/~scroom/phot/photom.html
(End)                                         Patricia Bauer  [CDS]  21-Apr-1999