The ST ScI Digitized Sky Survey (DSS) is based on scans of the photographic plates of surveys taken with the UK and the Palomar Schmidt Telescopes. Preliminary analyses have shown that photometry to within 0.5 magnitudes can be achieved by using a single calibration function for each photographic survey of the DSS. Photometric calibrations derived on a plate-by-plate basis will be good to better than 0.2 magnitudes.
Astronomical Data Analysis Software and Systems V
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