Object Date Mag +/- N Obs -------- ------------ --------- ----- -- -------------- PKS1510 20090611.871 15.90CR 0.05 4 A. San Segundo Observer: Adolfo San Segundo Telescope: 0.20-m f/10 Schmidt-Cassegrain CCD: ST-9 KAF-0261 unifiltered USNO-A2 R band M-1 Group