flag_pm0width=640,height=200 1one of the coordinates had an excessively large χ² 2Row from PPMXL (Roeser 2008, I/312). These objects are mostly Tycho stars that were masked out of USNO-B. 4Row from PPMXL (Roeser 2008, I/312), replaces a single row from USNO-B. 8Row replaces multiple USNO-B1.0 objects