The Photometric Calibration of the First Year of the Pan-STARRS 1 Survey

Details The Photometric Calibration of the First Year of the Pan-STARRS 1 Survey The Photometric Calibration of the First Year of the Pan-STARRS 1 Survey

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942816s&link_type=abstract

American Astronomical Society, AAS Meeting #219, #428.16

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the photometric calibration of the Pan-STARRS 1 survey (PS1), an ongoing optical survey of the entire sky north of declination -30 in five optical bands. Following the techniques employed by Padmanabhan et al. (2007) in the Sloan Digital Sky Survey, we use repeat PS1 observations of stars to perform the relative calibration of PS1 exposures. Comparison against SDSS observations of the same stars, where available, indicates that we achieve relative accuracies of <1% in g_P1, r_P1, and i_P1, and 1% in z_P1 and y_P1. The spatial structure of the differences with the SDSS indicates the errors come both from the SDSS and PS1 photometric calibrations, as well as from the PS1 photometry early in the survey. The results here are drawn primarily from the first year of PS1 science data, and will become more robust as the survey continues.

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