Preliminary Astrometric Results from the PS1 Demo Month and Routine Survey Operations

Abstract : Pan-STARRS PS1 has transitioned from its development phase to its operational phase. In March 2010, the Demo Month used a special cadence to allow data exploration to start. In May 2010, the Operation Phase commenced. Although there have been occasional breaks and revisions routine data collection has been maintained. So far, more than 16,000 frames are available to the PS1 Consortium for analysis. Based on these first few frames, the provisional astrometric results show the error for a single measure of a well-exposed star to be about 15 to 20 milliarcsec.