Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002noao.prop...79m&link_type=abstract
NOAO Proposal ID #2002A-0079
Astronomy and Astrophysics
Astronomy
Scientific paper
We propose to obtain B, V, and R CCD photometric sequences down to ~ 20 mag with an accuracy of about 5%. These sequences shall be part of the Second Guide Star Photometric Catalog (GSPC-II), which is being utilized by teams of the STScI and OATo to photometrically calibrate the digitized Schmidt plate archive used to build GSC-II. A first version of this catalog (GSC2.2) containing positions, magnitudes and colors for about 450 million objects down to 18.5 mag has been recently made available to the astronomical community. The publication of a new set of GSPC-II sequences, which were used to make GSC2.2, is also in preparation. With this proposal we intend to re-observe those fields taken in non-photometric nights of the March and July 2001A runs, which are not visible during our next December run.
Bucciarelli Beatrice
Costa Edgardo
García Yus Jorge
Massone Giuseppe
McLean Brian
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