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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tables.dat 96 2915 UBVRI photometry
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See also:
J/MNRAS/306/592 : UBVR CCD sequences for wide-field surveys. II. (Croom+, 1999)
Byte-by-byte Description of file: tables.dat
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Bytes Format Units Label Explanations
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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 B5-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
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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.
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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