Version: 6.4 (Fri Aug 14 02:20:11 UTC 2009) Using 1388 Counts, Exposure [s]= 175256.22 XRT/SDSS Frame Offset: RA -2.400 , Dec 1.800 , 90% Conf. Error: 0.790 Using 56 X-ray Sources and 50 SDSS Sources SDSS Refined RA, Dec: 16 45 21.46 +44 50 20.3 ; 90% Conf. ["]= 0.942 XRT/DSS Frame Offset: RA -1.700 , Dec 1.800 , 90% Conf. Error: 0.610 Using 56 X-ray Sources and 50 DSS Sources DSS Refined RA, Dec: 16 45 21.52 +44 50 20.3 ; 90% Conf. ["]= 0.797 Version: 6.3 (Sat Jul 25 04:32:47 UTC 2009) Using 1320 Counts, Exposure [s]= 93879.50 XRT/SDSS Frame Offset: RA -1.700 , Dec 2.600 , 90% Conf. Error: 1.120 Using 40 X-ray Sources and 36 SDSS Sources SDSS Refined RA, Dec: 16 45 21.53 +44 50 20.8 ; 90% Conf. ["]= 1.239 XRT/DSS Frame Offset: RA -2.100 , Dec 1.800 , 90% Conf. Error: 0.810 Using 40 X-ray Sources and 41 DSS Sources DSS Refined RA, Dec: 16 45 21.49 +44 50 20.0 ; 90% Conf. ["]= 0.967 Version: 6.2 (Sat Jul 25 02:12:54 UTC 2009) Using 1320 Counts, Exposure [s]= 92770.99 XRT/SDSS Frame Offset: RA -2.700 , Dec 1.900 , 90% Conf. Error: 1.210 Using 39 X-ray Sources and 35 SDSS Sources SDSS Refined RA, Dec: 16 45 21.43 +44 50 20.1 ; 90% Conf. ["]= 1.328 XRT/DSS Frame Offset: RA -2.100 , Dec 1.800 , 90% Conf. Error: 0.800 Using 39 X-ray Sources and 42 DSS Sources DSS Refined RA, Dec: 16 45 21.49 +44 50 20.0 ; 90% Conf. ["]= 0.969 Version: 6.1 (Fri Jul 24 21:34:09 UTC 2009) Using 1320 Counts, Exposure [s]= 91767.33 XRT/SDSS Frame Offset: RA -2.700 , Dec 1.900 , 90% Conf. Error: 1.260 Using 39 X-ray Sources and 35 SDSS Sources SDSS Refined RA, Dec: 16 45 21.44 +44 50 20.1 ; 90% Conf. ["]= 1.366 XRT/DSS Frame Offset: RA -2.200 , Dec 1.800 , 90% Conf. Error: 0.900 Using 39 X-ray Sources and 42 DSS Sources DSS Refined RA, Dec: 16 45 21.48 +44 50 20.0 ; 90% Conf. ["]= 1.043 Version: 6.0 (Fri Jul 24 19:12:39 UTC 2009) Using 1319 Counts, Exposure [s]= 90753.89 XRT/SDSS Frame Offset: RA -2.800 , Dec 1.800 , 90% Conf. Error: 1.230 Using 40 X-ray Sources and 37 SDSS Sources SDSS Refined RA, Dec: 16 45 21.42 +44 50 19.9 ; 90% Conf. ["]= 1.339 XRT/DSS Frame Offset: RA -2.300 , Dec 1.400 , 90% Conf. Error: 1.030 Using 40 X-ray Sources and 42 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 19.5 ; 90% Conf. ["]= 1.158 Version: 5.9 (Fri Jul 24 16:52:37 UTC 2009) Using 1319 Counts, Exposure [s]= 89764.03 XRT/SDSS Frame Offset: RA -2.700 , Dec 2.000 , 90% Conf. Error: 0.910 Using 38 X-ray Sources and 34 SDSS Sources SDSS Refined RA, Dec: 16 45 21.44 +44 50 20.1 ; 90% Conf. ["]= 1.054 XRT/DSS Frame Offset: RA -2.300 , Dec 1.500 , 90% Conf. Error: 1.400 Using 38 X-ray Sources and 40 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 19.6 ; 90% Conf. ["]= 1.498 Version: 5.8 (Fri Jul 24 14:12:31 UTC 2009) Using 1315 Counts, Exposure [s]= 86290.26 XRT/SDSS Frame Offset: RA -1.900 , Dec 2.900 , 90% Conf. Error: 0.990 Using 36 X-ray Sources and 35 SDSS Sources SDSS Refined RA, Dec: 16 45 21.50 +44 50 21.1 ; 90% Conf. ["]= 1.122 XRT/DSS Frame Offset: RA -2.400 , Dec 1.200 , 90% Conf. Error: 1.650 Using 36 X-ray Sources and 38 DSS Sources DSS Refined RA, Dec: 16 45 21.46 +44 50 19.4 ; 90% Conf. ["]= 1.733 Version: 5.7 (Fri Jul 24 12:32:42 UTC 2009) Using 1314 Counts, Exposure [s]= 84386.08 XRT/SDSS Frame Offset: RA -1.900 , Dec 2.900 , 90% Conf. Error: 1.070 Using 35 X-ray Sources and 35 SDSS Sources SDSS Refined RA, Dec: 16 45 21.50 +44 50 21.0 ; 90% Conf. ["]= 1.194 XRT/DSS Frame Offset: RA -2.300 , Dec 2.000 , 90% Conf. Error: 1.260 Using 35 X-ray Sources and 36 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 20.1 ; 90% Conf. ["]= 1.367 Version: 5.6 (Fri Jul 24 04:52:37 UTC 2009) Using 1313 Counts, Exposure [s]= 83730.08 XRT/SDSS Frame Offset: RA -2.000 , Dec 3.000 , 90% Conf. Error: 1.090 Using 35 X-ray Sources and 33 SDSS Sources SDSS Refined RA, Dec: 16 45 21.50 +44 50 21.2 ; 90% Conf. ["]= 1.212 XRT/DSS Frame Offset: RA -2.300 , Dec 2.000 , 90% Conf. Error: 1.210 Using 35 X-ray Sources and 35 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 20.2 ; 90% Conf. ["]= 1.321 Version: 5.5 (Thu Jul 23 21:12:34 UTC 2009) Using 1313 Counts, Exposure [s]= 83536.59 XRT/SDSS Frame Offset: RA -2.000 , Dec 3.000 , 90% Conf. Error: 1.080 Using 35 X-ray Sources and 33 SDSS Sources SDSS Refined RA, Dec: 16 45 21.50 +44 50 21.2 ; 90% Conf. ["]= 1.211 XRT/DSS Frame Offset: RA -2.300 , Dec 2.000 , 90% Conf. Error: 1.210 Using 35 X-ray Sources and 35 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 20.2 ; 90% Conf. ["]= 1.328 Version: 5.4 (Thu Jul 23 19:12:30 UTC 2009) Using 1313 Counts, Exposure [s]= 82765.56 XRT/SDSS Frame Offset: RA -2.000 , Dec 3.000 , 90% Conf. Error: 1.050 Using 35 X-ray Sources and 33 SDSS Sources SDSS Refined RA, Dec: 16 45 21.50 +44 50 21.2 ; 90% Conf. ["]= 1.176 XRT/DSS Frame Offset: RA -1.000 , Dec 2.200 , 90% Conf. Error: 1.430 Using 35 X-ray Sources and 35 DSS Sources DSS Refined RA, Dec: 16 45 21.59 +44 50 20.4 ; 90% Conf. ["]= 1.525 Version: 5.3 (Thu Jul 23 16:12:32 UTC 2009) Using 1311 Counts, Exposure [s]= 81930.46 XRT/SDSS Frame Offset: RA -1.800 , Dec 2.600 , 90% Conf. Error: 1.210 Using 34 X-ray Sources and 31 SDSS Sources SDSS Refined RA, Dec: 16 45 21.51 +44 50 20.8 ; 90% Conf. ["]= 1.321 XRT/DSS Frame Offset: RA -2.300 , Dec 2.000 , 90% Conf. Error: 0.640 Using 34 X-ray Sources and 34 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 20.2 ; 90% Conf. ["]= 0.832 Version: 5.2 (Thu Jul 23 14:32:31 UTC 2009) Using 1311 Counts, Exposure [s]= 81913.72 XRT/SDSS Frame Offset: RA -1.800 , Dec 2.600 , 90% Conf. Error: 1.210 Using 34 X-ray Sources and 31 SDSS Sources SDSS Refined RA, Dec: 16 45 21.51 +44 50 20.8 ; 90% Conf. ["]= 1.321 XRT/DSS Frame Offset: RA -2.300 , Dec 2.000 , 90% Conf. Error: 0.640 Using 34 X-ray Sources and 34 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 20.2 ; 90% Conf. ["]= 0.832 Version: 5.1 (Thu Jul 23 13:12:31 UTC 2009) Using 1309 Counts, Exposure [s]= 81073.65 XRT/SDSS Frame Offset: RA -1.800 , Dec 2.600 , 90% Conf. Error: 1.570 Using 35 X-ray Sources and 34 SDSS Sources SDSS Refined RA, Dec: 16 45 21.51 +44 50 20.8 ; 90% Conf. ["]= 1.656 XRT/DSS Frame Offset: RA -2.300 , Dec 2.000 , 90% Conf. Error: 1.710 Using 35 X-ray Sources and 36 DSS Sources DSS Refined RA, Dec: 16 45 21.47 +44 50 20.2 ; 90% Conf. ["]= 1.790 Version: 5.0 (Thu Jul 23 11:12:16 UTC 2009) Using 1305 Counts, Exposure [s]= 78665.82 XRT/SDSS Frame Offset: RA -1.800 , Dec 2.500 , 90% Conf. Error: 1.260 Using 34 X-ray Sources and 33 SDSS Sources SDSS Refined RA, Dec: 16 45 21.52 +44 50 20.8 ; 90% Conf. ["]= 1.367 XRT/DSS Frame Offset: RA -1.600 , Dec 2.700 , 90% Conf. Error: 1.940 Using 34 X-ray Sources and 35 DSS Sources DSS Refined RA, Dec: 16 45 21.54 +44 50 21.0 ; 90% Conf. ["]= 2.011 Version: 4.9 (Wed Jul 22 22:12:33 UTC 2009) Using 1305 Counts, Exposure [s]= 78190.91 XRT/SDSS Frame Offset: RA -1.900 , Dec 2.600 , 90% Conf. Error: 1.290 Using 35 X-ray Sources and 33 SDSS Sources SDSS Refined RA, Dec: 16 45 21.51 +44 50 20.9 ; 90% Conf. ["]= 1.393 XRT/DSS Frame Offset: RA -1.600 , Dec 2.700 , 90% Conf. Error: 1.750 Using 35 X-ray Sources and 36 DSS Sources DSS Refined RA, Dec: 16 45 21.54 +44 50 21.0 ; 90% Conf. ["]= 1.828 Version: 4.8 (Wed Jul 22 19:32:32 UTC 2009) Using 1305 Counts, Exposure [s]= 77268.24 XRT/SDSS Frame Offset: RA -1.900 , Dec 2.800 , 90% Conf. Error: 1.370 Using 35 X-ray Sources and 32 SDSS Sources SDSS Refined RA, Dec: 16 45 21.51 +44 50 21.0 ; 90% Conf. ["]= 1.468 XRT/DSS Frame Offset: RA -1.300 , Dec 2.700 , 90% Conf. Error: 0.730 Using 35 X-ray Sources and 37 DSS Sources DSS Refined RA, Dec: 16 45 21.56 +44 50 20.9 ; 90% Conf. ["]= 0.900 Version: 4.7 (Wed Jul 22 17:52:37 UTC 2009) Using 1305 Counts, Exposure [s]= 77265.54 XRT/SDSS Frame Offset: RA -1.900 , Dec 2.800 , 90% Conf. Error: 1.370 Using 35 X-ray Sources and 32 SDSS Sources SDSS Refined RA, Dec: 16 45 21.51 +44 50 21.0 ; 90% Conf. ["]= 1.468 XRT/DSS Frame Offset: RA -1.300 , Dec 2.700 , 90% Conf. Error: 0.730 Using 35 X-ray Sources and 37 DSS Sources DSS Refined RA, Dec: 16 45 21.56 +44 50 20.9 ; 90% Conf. ["]= 0.900 Version: 4.6 (Wed Jul 22 14:12:24 UTC 2009) Using 1303 Counts, Exposure [s]= 75151.90 XRT/SDSS Frame Offset: RA -1.000 , Dec 1.800 , 90% Conf. Error: 1.370 Using 34 X-ray Sources and 31 SDSS Sources SDSS Refined RA, Dec: 16 45 21.60 +44 50 20.1 ; 90% Conf. ["]= 1.467 XRT/DSS Frame Offset: RA -0.800 , Dec 2.000 , 90% Conf. Error: 0.810 Using 34 X-ray Sources and 37 DSS Sources DSS Refined RA, Dec: 16 45 21.62 +44 50 20.3 ; 90% Conf. ["]= 0.965 Version: 4.5 (Wed Jul 22 12:52:20 UTC 2009) Using 1302 Counts, Exposure [s]= 74142.98 XRT/SDSS Frame Offset: RA -1.200 , Dec 1.900 , 90% Conf. Error: 1.030 Using 35 X-ray Sources and 31 SDSS Sources SDSS Refined RA, Dec: 16 45 21.58 +44 50 20.1 ; 90% Conf. ["]= 1.155 XRT/DSS Frame Offset: RA -1.300 , Dec 1.800 , 90% Conf. Error: 0.910 Using 35 X-ray Sources and 37 DSS Sources DSS Refined RA, Dec: 16 45 21.57 +44 50 20.0 ; 90% Conf. ["]= 1.050 Version: 4.4 (Wed Jul 22 10:53:35 UTC 2009) Using 1296 Counts, Exposure [s]= 71408.36 XRT/SDSS Frame Offset: RA -1.800 , Dec 2.600 , 90% Conf. Error: 1.070 Using 32 X-ray Sources and 29 SDSS Sources SDSS Refined RA, Dec: 16 45 21.53 +44 50 20.7 ; 90% Conf. ["]= 1.203 XRT/DSS Frame Offset: RA -0.800 , Dec 2.200 , 90% Conf. Error: 1.560 Using 32 X-ray Sources and 38 DSS Sources DSS Refined RA, Dec: 16 45 21.63 +44 50 20.3 ; 90% Conf. ["]= 1.654 Version: 4.3 (Tue Jul 21 21:52:27 UTC 2009) Using 1295 Counts, Exposure [s]= 70218.18 XRT/SDSS Frame Offset: RA -0.800 , Dec 1.700 , 90% Conf. Error: 1.630 Using 35 X-ray Sources and 34 SDSS Sources SDSS Refined RA, Dec: 16 45 21.63 +44 50 19.9 ; 90% Conf. ["]= 1.712 XRT/DSS Frame Offset: RA -0.500 , Dec 2.100 , 90% Conf. Error: 0.540 Using 35 X-ray Sources and 38 DSS Sources DSS Refined RA, Dec: 16 45 21.66 +44 50 20.3 ; 90% Conf. ["]= 0.752 Version: 4.2 (Tue Jul 21 19:32:34 UTC 2009) Using 1295 Counts, Exposure [s]= 70097.54 XRT/SDSS Frame Offset: RA -0.800 , Dec 1.700 , 90% Conf. Error: 1.630 Using 36 X-ray Sources and 34 SDSS Sources SDSS Refined RA, Dec: 16 45 21.63 +44 50 19.9 ; 90% Conf. ["]= 1.717 XRT/DSS Frame Offset: RA -0.600 , Dec 2.100 , 90% Conf. Error: 0.540 Using 36 X-ray Sources and 40 DSS Sources DSS Refined RA, Dec: 16 45 21.65 +44 50 20.3 ; 90% Conf. ["]= 0.764 Version: 4.1 (Tue Jul 21 16:32:24 UTC 2009) Using 1295 Counts, Exposure [s]= 70077.29 XRT/SDSS Frame Offset: RA -0.800 , Dec 1.700 , 90% Conf. Error: 1.630 Using 35 X-ray Sources and 34 SDSS Sources SDSS Refined RA, Dec: 16 45 21.63 +44 50 19.9 ; 90% Conf. ["]= 1.712 XRT/DSS Frame Offset: RA -0.600 , Dec 2.100 , 90% Conf. Error: 0.540 Using 35 X-ray Sources and 40 DSS Sources DSS Refined RA, Dec: 16 45 21.65 +44 50 20.3 ; 90% Conf. ["]= 0.752 Version: 4.0 (Tue Jul 21 15:12:20 UTC 2009) Using 1294 Counts, Exposure [s]= 69101.15 XRT/SDSS Frame Offset: RA -2.700 , Dec 2.500 , 90% Conf. Error: 1.620 Using 33 X-ray Sources and 31 SDSS Sources SDSS Refined RA, Dec: 16 45 21.44 +44 50 20.7 ; 90% Conf. ["]= 1.703 XRT/DSS Frame Offset: RA -0.600 , Dec 2.200 , 90% Conf. Error: 0.680 Using 33 X-ray Sources and 38 DSS Sources DSS Refined RA, Dec: 16 45 21.64 +44 50 20.4 ; 90% Conf. ["]= 0.858 Version: 3.9 (Mon Jul 20 19:12:54 UTC 2009) Using 1279 Counts, Exposure [s]= 64331.45 XRT/SDSS Frame Offset: RA -1.800 , Dec 2.500 , 90% Conf. Error: 1.440 Using 31 X-ray Sources and 33 SDSS Sources SDSS Refined RA, Dec: 16 45 21.53 +44 50 20.7 ; 90% Conf. ["]= 1.540 XRT/DSS Frame Offset: RA -1.500 , Dec 2.600 , 90% Conf. Error: 0.770 Using 31 X-ray Sources and 35 DSS Sources DSS Refined RA, Dec: 16 45 21.55 +44 50 20.8 ; 90% Conf. ["]= 0.944 Version: 3.8 (Mon Jul 20 17:12:52 UTC 2009) Using 1276 Counts, Exposure [s]= 63254.09 XRT/SDSS Frame Offset: RA -2.100 , Dec 2.900 , 90% Conf. Error: 1.140 Using 31 X-ray Sources and 33 SDSS Sources SDSS Refined RA, Dec: 16 45 21.49 +44 50 21.1 ; 90% Conf. ["]= 1.265 XRT/DSS Frame Offset: RA -1.500 , Dec 2.600 , 90% Conf. Error: 0.810 Using 31 X-ray Sources and 34 DSS Sources DSS Refined RA, Dec: 16 45 21.55 +44 50 20.8 ; 90% Conf. ["]= 0.979 Version: 3.7 (Mon Jul 20 13:12:22 UTC 2009) Using 1274 Counts, Exposure [s]= 61136.55 XRT/SDSS Frame Offset: RA -1.900 , Dec 2.700 , 90% Conf. Error: 0.830 Using 28 X-ray Sources and 29 SDSS Sources SDSS Refined RA, Dec: 16 45 21.51 +44 50 20.9 ; 90% Conf. ["]= 0.996 XRT/DSS Frame Offset: RA -1.600 , Dec 2.500 , 90% Conf. Error: 0.500 Using 28 X-ray Sources and 31 DSS Sources DSS Refined RA, Dec: 16 45 21.54 +44 50 20.7 ; 90% Conf. ["]= 0.743 Version: 3.6 (Mon Jul 20 05:12:15 UTC 2009) Using 1270 Counts, Exposure [s]= 59024.85 XRT/SDSS Frame Offset: RA -2.100 , Dec 2.100 , 90% Conf. Error: 0.610 Using 30 X-ray Sources and 32 SDSS Sources SDSS Refined RA, Dec: 16 45 21.49 +44 50 20.3 ; 90% Conf. ["]= 0.807 XRT/DSS Frame Offset: RA -1.900 , Dec 2.300 , 90% Conf. Error: 0.420 Using 30 X-ray Sources and 32 DSS Sources DSS Refined RA, Dec: 16 45 21.51 +44 50 20.5 ; 90% Conf. ["]= 0.675 Version: 3.5 (Mon Jul 20 03:32:46 UTC 2009) Using 1269 Counts, Exposure [s]= 58356.37 XRT/SDSS Frame Offset: RA -2.300 , Dec 2.100 , 90% Conf. Error: 0.770 Using 29 X-ray Sources and 31 SDSS Sources SDSS Refined RA, Dec: 16 45 21.47 +44 50 20.3 ; 90% Conf. ["]= 0.945 XRT/DSS Frame Offset: RA -1.900 , Dec 2.300 , 90% Conf. Error: 0.420 Using 29 X-ray Sources and 32 DSS Sources DSS Refined RA, Dec: 16 45 21.51 +44 50 20.5 ; 90% Conf. ["]= 0.690 Version: 3.4 (Sun Jul 19 22:52:18 UTC 2009) Using 1269 Counts, Exposure [s]= 58281.16 XRT/SDSS Frame Offset: RA -2.300 , Dec 2.100 , 90% Conf. Error: 0.770 Using 29 X-ray Sources and 31 SDSS Sources SDSS Refined RA, Dec: 16 45 21.47 +44 50 20.3 ; 90% Conf. ["]= 0.945 XRT/DSS Frame Offset: RA -1.900 , Dec 2.300 , 90% Conf. Error: 0.430 Using 29 X-ray Sources and 32 DSS Sources DSS Refined RA, Dec: 16 45 21.51 +44 50 20.5 ; 90% Conf. ["]= 0.697 Version: 3.3 (Sun Jul 19 19:12:14 UTC 2009) Using 1267 Counts, Exposure [s]= 57716.40 XRT/SDSS Frame Offset: RA -2.300 , Dec 2.100 , 90% Conf. Error: 0.790 Using 29 X-ray Sources and 30 SDSS Sources SDSS Refined RA, Dec: 16 45 21.47 +44 50 20.3 ; 90% Conf. ["]= 0.961 XRT/DSS Frame Offset: RA -1.900 , Dec 2.300 , 90% Conf. Error: 0.430 Using 29 X-ray Sources and 31 DSS Sources DSS Refined RA, Dec: 16 45 21.51 +44 50 20.5 ; 90% Conf. ["]= 0.697 Version: 3.2 (Sun Jul 19 17:12:01 UTC 2009) Using 1265 Counts, Exposure [s]= 56662.61 XRT/SDSS Frame Offset: RA -2.100 , Dec 2.200 , 90% Conf. Error: 1.650 Using 26 X-ray Sources and 24 SDSS Sources SDSS Refined RA, Dec: 16 45 21.52 +44 50 20.6 ; 90% Conf. ["]= 1.740 XRT/DSS Frame Offset: RA -2.000 , Dec 2.000 , 90% Conf. Error: 0.510 Using 26 X-ray Sources and 30 DSS Sources DSS Refined RA, Dec: 16 45 21.53 +44 50 20.4 ; 90% Conf. ["]= 0.752 Version: 3.1 (Sun Jul 19 15:12:13 UTC 2009) Using 1264 Counts, Exposure [s]= 55519.79 XRT/SDSS Frame Offset: RA -2.300 , Dec 2.300 , 90% Conf. Error: 0.730 Using 29 X-ray Sources and 29 SDSS Sources SDSS Refined RA, Dec: 16 45 21.49 +44 50 20.6 ; 90% Conf. ["]= 0.915 XRT/DSS Frame Offset: RA -2.000 , Dec 2.200 , 90% Conf. Error: 0.500 Using 29 X-ray Sources and 32 DSS Sources DSS Refined RA, Dec: 16 45 21.52 +44 50 20.5 ; 90% Conf. ["]= 0.744 Version: 3.0 (Sun Jul 19 13:52:08 UTC 2009) Using 1257 Counts, Exposure [s]= 54459.28 XRT/SDSS Frame Offset: RA -2.700 , Dec 2.700 , 90% Conf. Error: 1.070 Using 24 X-ray Sources and 25 SDSS Sources SDSS Refined RA, Dec: 16 45 21.46 +44 50 21.0 ; 90% Conf. ["]= 1.200 XRT/DSS Frame Offset: RA -2.300 , Dec 2.000 , 90% Conf. Error: 0.510 Using 24 X-ray Sources and 28 DSS Sources DSS Refined RA, Dec: 16 45 21.50 +44 50 20.3 ; 90% Conf. ["]= 0.746 Version: 2.9 (Sun Jul 19 11:51:59 UTC 2009) Using 1248 Counts, Exposure [s]= 51992.09 XRT/SDSS Frame Offset: RA -2.800 , Dec 2.700 , 90% Conf. Error: 1.090 Using 19 X-ray Sources and 21 SDSS Sources SDSS Refined RA, Dec: 16 45 21.45 +44 50 21.1 ; 90% Conf. ["]= 1.232 XRT/DSS Frame Offset: RA -2.300 , Dec 2.100 , 90% Conf. Error: 0.540 Using 19 X-ray Sources and 23 DSS Sources DSS Refined RA, Dec: 16 45 21.49 +44 50 20.5 ; 90% Conf. ["]= 0.789 Version: 2.8 (Sun Jul 19 04:31:51 UTC 2009) Using 1233 Counts, Exposure [s]= 48457.64 XRT/SDSS Frame Offset: RA -2.200 , Dec 2.100 , 90% Conf. Error: 1.180 Using 19 X-ray Sources and 17 SDSS Sources SDSS Refined RA, Dec: 16 45 21.50 +44 50 20.6 ; 90% Conf. ["]= 1.312 XRT/DSS Frame Offset: RA -2.200 , Dec 1.700 , 90% Conf. Error: 0.540 Using 19 X-ray Sources and 21 DSS Sources DSS Refined RA, Dec: 16 45 21.50 +44 50 20.2 ; 90% Conf. ["]= 0.787 Version: 2.7 (Sun Jul 19 03:32:17 UTC 2009) Using 1231 Counts, Exposure [s]= 47775.37 XRT/SDSS Frame Offset: RA -2.900 , Dec 2.400 , 90% Conf. Error: 0.810 Using 19 X-ray Sources and 19 SDSS Sources SDSS Refined RA, Dec: 16 45 21.44 +44 50 20.9 ; 90% Conf. ["]= 0.991 XRT/DSS Frame Offset: RA -2.300 , Dec 1.800 , 90% Conf. Error: 0.640 Using 19 X-ray Sources and 22 DSS Sources DSS Refined RA, Dec: 16 45 21.49 +44 50 20.3 ; 90% Conf. ["]= 0.858 Version: 2.6 (Sun Jul 19 01:32:18 UTC 2009) Using 1231 Counts, Exposure [s]= 47398.39 XRT/SDSS Frame Offset: RA -2.800 , Dec 2.400 , 90% Conf. Error: 0.790 Using 18 X-ray Sources and 19 SDSS Sources SDSS Refined RA, Dec: 16 45 21.45 +44 50 20.8 ; 90% Conf. ["]= 0.977 XRT/DSS Frame Offset: RA -1.800 , Dec 1.800 , 90% Conf. Error: 0.680 Using 18 X-ray Sources and 21 DSS Sources DSS Refined RA, Dec: 16 45 21.54 +44 50 20.2 ; 90% Conf. ["]= 0.891 Version: 2.5 (Sat Jul 18 23:52:12 UTC 2009) Using 1227 Counts, Exposure [s]= 46783.99 XRT/SDSS Frame Offset: RA -2.800 , Dec 2.400 , 90% Conf. Error: 1.090 Using 17 X-ray Sources and 19 SDSS Sources SDSS Refined RA, Dec: 16 45 21.45 +44 50 20.8 ; 90% Conf. ["]= 1.234 XRT/DSS Frame Offset: RA -1.900 , Dec 1.700 , 90% Conf. Error: 0.810 Using 17 X-ray Sources and 20 DSS Sources DSS Refined RA, Dec: 16 45 21.53 +44 50 20.1 ; 90% Conf. ["]= 0.995 Version: 2.4 (Sat Jul 18 21:52:15 UTC 2009) Using 1224 Counts, Exposure [s]= 45989.20 XRT/SDSS Frame Offset: RA -2.900 , Dec 2.400 , 90% Conf. Error: 1.150 Using 17 X-ray Sources and 19 SDSS Sources SDSS Refined RA, Dec: 16 45 21.44 +44 50 20.9 ; 90% Conf. ["]= 1.288 XRT/DSS Frame Offset: RA -2.500 , Dec 1.700 , 90% Conf. Error: 0.790 Using 17 X-ray Sources and 20 DSS Sources DSS Refined RA, Dec: 16 45 21.48 +44 50 20.2 ; 90% Conf. ["]= 0.979 Version: 2.3 (Sat Jul 18 20:12:08 UTC 2009) Using 1220 Counts, Exposure [s]= 45536.34 XRT/SDSS Frame Offset: RA -2.700 , Dec 2.600 , 90% Conf. Error: 1.120 Using 18 X-ray Sources and 19 SDSS Sources SDSS Refined RA, Dec: 16 45 21.46 +44 50 21.1 ; 90% Conf. ["]= 1.259 XRT/DSS Frame Offset: RA -1.800 , Dec 1.700 , 90% Conf. Error: 0.810 Using 18 X-ray Sources and 21 DSS Sources DSS Refined RA, Dec: 16 45 21.54 +44 50 20.2 ; 90% Conf. ["]= 0.994 Version: 2.2 (Sat Jul 18 18:52:07 UTC 2009) Using 1217 Counts, Exposure [s]= 44256.02 XRT/SDSS Frame Offset: RA -2.700 , Dec 2.500 , 90% Conf. Error: 1.150 Using 17 X-ray Sources and 17 SDSS Sources SDSS Refined RA, Dec: 16 45 21.46 +44 50 21.1 ; 90% Conf. ["]= 1.290 XRT/DSS Frame Offset: RA -2.400 , Dec 1.900 , 90% Conf. Error: 0.870 Using 17 X-ray Sources and 19 DSS Sources DSS Refined RA, Dec: 16 45 21.49 +44 50 20.5 ; 90% Conf. ["]= 1.048 Version: 2.1 (Sat Jul 18 17:52:05 UTC 2009) Using 1215 Counts, Exposure [s]= 44014.70 XRT/SDSS Frame Offset: RA -2.700 , Dec 2.500 , 90% Conf. Error: 1.150 Using 17 X-ray Sources and 17 SDSS Sources SDSS Refined RA, Dec: 16 45 21.46 +44 50 21.1 ; 90% Conf. ["]= 1.290 XRT/DSS Frame Offset: RA -2.400 , Dec 1.900 , 90% Conf. Error: 0.870 Using 17 X-ray Sources and 19 DSS Sources DSS Refined RA, Dec: 16 45 21.49 +44 50 20.5 ; 90% Conf. ["]= 1.048 Version: 2.0 (Sat Jul 18 15:33:42 UTC 2009) Using 1214 Counts, Exposure [s]= 43757.44 XRT/SDSS Frame Offset: RA -2.600 , Dec 2.500 , 90% Conf. Error: 1.140 Using 17 X-ray Sources and 17 SDSS Sources SDSS Refined RA, Dec: 16 45 21.46 +44 50 20.9 ; 90% Conf. ["]= 1.279 XRT/DSS Frame Offset: RA -1.900 , Dec 1.800 , 90% Conf. Error: 0.730 Using 17 X-ray Sources and 19 DSS Sources DSS Refined RA, Dec: 16 45 21.53 +44 50 20.2 ; 90% Conf. ["]= 0.932 Version: 1.9 (Fri Jul 17 23:51:58 UTC 2009) Using 1177 Counts, Exposure [s]= 37543.65 XRT/SDSS Frame Offset: RA -1.300 , Dec 1.200 , 90% Conf. Error: 1.090 Using 17 X-ray Sources and 16 SDSS Sources SDSS Refined RA, Dec: 16 45 21.57 +44 50 19.7 ; 90% Conf. ["]= 1.232 XRT/DSS Frame Offset: RA -1.300 , Dec 1.600 , 90% Conf. Error: 1.070 Using 17 X-ray Sources and 19 DSS Sources DSS Refined RA, Dec: 16 45 21.57 +44 50 20.1 ; 90% Conf. ["]= 1.215 Version: 1.8 (Fri Jul 17 19:51:56 UTC 2009) Using 1165 Counts, Exposure [s]= 36073.77 XRT/SDSS Frame Offset: RA -1.600 , Dec 1.300 , 90% Conf. Error: 1.530 Using 16 X-ray Sources and 17 SDSS Sources SDSS Refined RA, Dec: 16 45 21.56 +44 50 19.4 ; 90% Conf. ["]= 1.633 XRT/DSS Frame Offset: RA -1.800 , Dec 1.800 , 90% Conf. Error: 0.930 Using 16 X-ray Sources and 19 DSS Sources DSS Refined RA, Dec: 16 45 21.54 +44 50 19.9 ; 90% Conf. ["]= 1.092 Version: 1.7 (Fri Jul 17 18:12:59 UTC 2009) Using 1156 Counts, Exposure [s]= 35096.82 XRT/SDSS Frame Offset: RA -1.700 , Dec 1.300 , 90% Conf. Error: 1.480 Using 16 X-ray Sources and 17 SDSS Sources SDSS Refined RA, Dec: 16 45 21.55 +44 50 19.4 ; 90% Conf. ["]= 1.588 XRT/DSS Frame Offset: RA -2.400 , Dec 2.400 , 90% Conf. Error: 1.170 Using 16 X-ray Sources and 19 DSS Sources DSS Refined RA, Dec: 16 45 21.48 +44 50 20.5 ; 90% Conf. ["]= 1.304 Version: 1.6 (Fri Jul 17 16:31:54 UTC 2009) Using 1146 Counts, Exposure [s]= 33437.07 XRT/SDSS Frame Offset: RA -2.100 , Dec 2.000 , 90% Conf. Error: 0.810 Using 14 X-ray Sources and 17 SDSS Sources SDSS Refined RA, Dec: 16 45 21.50 +44 50 19.9 ; 90% Conf. ["]= 1.010 XRT/DSS Frame Offset: RA -2.200 , Dec 2.600 , 90% Conf. Error: 0.810 Using 14 X-ray Sources and 17 DSS Sources DSS Refined RA, Dec: 16 45 21.49 +44 50 20.5 ; 90% Conf. ["]= 1.010 Version: 1.5 (Fri Jul 17 14:51:41 UTC 2009) Using 1132 Counts, Exposure [s]= 31766.41 XRT/SDSS Frame Offset: RA -1.900 , Dec 1.200 , 90% Conf. Error: 1.210 Using 15 X-ray Sources and 19 SDSS Sources SDSS Refined RA, Dec: 16 45 21.54 +44 50 19.1 ; 90% Conf. ["]= 1.350 XRT/DSS Frame Offset: RA -2.200 , Dec 2.500 , 90% Conf. Error: 1.300 Using 15 X-ray Sources and 18 DSS Sources DSS Refined RA, Dec: 16 45 21.51 +44 50 20.4 ; 90% Conf. ["]= 1.431 Version: 1.4 (Fri Jul 17 06:53:06 UTC 2009) Using 1132 Counts, Exposure [s]= 31379.50 XRT/SDSS Frame Offset: RA -1.500 , Dec 0.900 , 90% Conf. Error: 1.210 Using 13 X-ray Sources and 16 SDSS Sources SDSS Refined RA, Dec: 16 45 21.57 +44 50 18.8 ; 90% Conf. ["]= 1.353 XRT/DSS Frame Offset: RA -2.100 , Dec 2.600 , 90% Conf. Error: 1.840 Using 13 X-ray Sources and 16 DSS Sources DSS Refined RA, Dec: 16 45 21.52 +44 50 20.5 ; 90% Conf. ["]= 1.937 Version: 1.3 (Fri Jul 17 06:13:08 UTC 2009) Using 1123 Counts, Exposure [s]= 29952.84 XRT/SDSS Frame Offset: RA -1.100 , Dec 1.300 , 90% Conf. Error: 1.270 Using 12 X-ray Sources and 11 SDSS Sources SDSS Refined RA, Dec: 16 45 21.61 +44 50 19.3 ; 90% Conf. ["]= 1.416 XRT/DSS Frame Offset: RA -0.900 , Dec 1.000 , 90% Conf. Error: 1.180 Using 12 X-ray Sources and 15 DSS Sources DSS Refined RA, Dec: 16 45 21.63 +44 50 19.0 ; 90% Conf. ["]= 1.336 Version: 1.2 (Fri Jul 17 04:53:05 UTC 2009) Using 1102 Counts, Exposure [s]= 28919.42 XRT/SDSS Frame Offset: RA -1.700 , Dec 1.500 , 90% Conf. Error: 1.080 Using 10 X-ray Sources and 13 SDSS Sources SDSS Refined RA, Dec: 16 45 21.54 +44 50 19.8 ; 90% Conf. ["]= 1.256 XRT/DSS Frame Offset: RA -1.900 , Dec 2.500 , 90% Conf. Error: 0.990 Using 10 X-ray Sources and 14 DSS Sources DSS Refined RA, Dec: 16 45 21.52 +44 50 20.8 ; 90% Conf. ["]= 1.179 Version: 1.1 (Fri Jul 17 03:53:00 UTC 2009) Using 1100 Counts, Exposure [s]= 28802.44 XRT/SDSS Frame Offset: RA -0.900 , Dec 1.100 , 90% Conf. Error: 0.910 Using 12 X-ray Sources and 11 SDSS Sources SDSS Refined RA, Dec: 16 45 21.64 +44 50 18.9 ; 90% Conf. ["]= 1.106 XRT/DSS Frame Offset: RA -0.700 , Dec 0.900 , 90% Conf. Error: 0.830 Using 12 X-ray Sources and 15 DSS Sources DSS Refined RA, Dec: 16 45 21.66 +44 50 18.7 ; 90% Conf. ["]= 1.041 Version: 1.0 (Fri Jul 17 02:12:39 UTC 2009) Using 1048 Counts, Exposure [s]= 24778.62 XRT/SDSS Frame Offset: RA -1.100 , Dec 0.600 , 90% Conf. Error: 1.430 Using 7 X-ray Sources and 11 SDSS Sources SDSS Refined RA, Dec: 16 45 21.63 +44 50 18.3 ; 90% Conf. ["]= 1.607 XRT/DSS Frame Offset: RA -1.700 , Dec 1.400 , 90% Conf. Error: 1.050 Using 7 X-ray Sources and 10 DSS Sources DSS Refined RA, Dec: 16 45 21.57 +44 50 19.1 ; 90% Conf. ["]= 1.281 Version: 0.9 (Fri Jul 17 01:12:43 UTC 2009) Using 1033 Counts, Exposure [s]= 23241.47 XRT/SDSS Frame Offset: RA -1.400 , Dec 0.700 , 90% Conf. Error: 2.060 Using 7 X-ray Sources and 10 SDSS Sources SDSS Refined RA, Dec: 16 45 21.60 +44 50 18.6 ; 90% Conf. ["]= 2.180 XRT/DSS Frame Offset: RA -2.200 , Dec 2.200 , 90% Conf. Error: 1.530 Using 7 X-ray Sources and 10 DSS Sources DSS Refined RA, Dec: 16 45 21.53 +44 50 20.1 ; 90% Conf. ["]= 1.688 Version: 0.8 (Thu Jul 16 20:32:52 UTC 2009) Using 1032 Counts, Exposure [s]= 23193.09 XRT/SDSS Frame Offset: RA -1.400 , Dec 0.700 , 90% Conf. Error: 2.060 Using 7 X-ray Sources and 10 SDSS Sources SDSS Refined RA, Dec: 16 45 21.60 +44 50 18.6 ; 90% Conf. ["]= 2.180 XRT/DSS Frame Offset: RA -2.200 , Dec 2.200 , 90% Conf. Error: 1.530 Using 7 X-ray Sources and 10 DSS Sources DSS Refined RA, Dec: 16 45 21.53 +44 50 20.1 ; 90% Conf. ["]= 1.688 Version: 0.7 (Thu Jul 16 18:52:36 UTC 2009) Using 992 Counts, Exposure [s]= 20681.71 XRT/SDSS Frame Offset: RA -0.900 , Dec 0.200 , 90% Conf. Error: 3.890 Using 7 X-ray Sources and 12 SDSS Sources SDSS Refined RA, Dec: 16 45 21.62 +44 50 18.6 ; 90% Conf. ["]= 3.958 XRT/DSS Frame Offset: RA -1.700 , Dec 2.400 , 90% Conf. Error: 2.010 Using 7 X-ray Sources and 10 DSS Sources DSS Refined RA, Dec: 16 45 21.54 +44 50 20.8 ; 90% Conf. ["]= 2.139 Version: 0.6 (Thu Jul 16 18:12:37 UTC 2009) Using 958 Counts, Exposure [s]= 18229.21 XRT/SDSS Frame Offset: RA -0.900 , Dec 0.100 , 90% Conf. Error: 2.090 Using 7 X-ray Sources and 13 SDSS Sources SDSS Refined RA, Dec: 16 45 21.63 +44 50 18.3 ; 90% Conf. ["]= 2.227 XRT/DSS Frame Offset: RA -3.400 , Dec 2.700 , 90% Conf. Error: 1.950 Using 7 X-ray Sources and 10 DSS Sources DSS Refined RA, Dec: 16 45 21.40 +44 50 20.9 ; 90% Conf. ["]= 2.096 Version: 0.5 (Thu Jul 16 16:12:27 UTC 2009) Using 1002 Counts, Exposure [s]= 15758.41 XRT/SDSS Frame Offset: RA -1.000 , Dec 2.200 , 90% Conf. Error: 7.210 Using 2 X-ray Sources and 4 SDSS Sources SDSS Refined RA, Dec: 16 45 21.69 +44 50 20.6 ; 90% Conf. ["]= 7.256 XRT/DSS Frame Offset: RA -1.100 , Dec 2.400 , 90% Conf. Error: 1.170 Using 2 X-ray Sources and 4 DSS Sources DSS Refined RA, Dec: 16 45 21.68 +44 50 20.8 ; 90% Conf. ["]= 1.426 Version: 0.4 (Thu Jul 16 14:12:03 UTC 2009) Using 894 Counts, Exposure [s]= 10860.50 XRT/SDSS Frame Offset: RA -1.300 , Dec 1.500 , 90% Conf. Error: 4.040 Using 3 X-ray Sources and 6 SDSS Sources SDSS Refined RA, Dec: 16 45 21.65 +44 50 19.7 ; 90% Conf. ["]= 4.144 XRT/DSS Frame Offset: RA -1.000 , Dec 1.600 , 90% Conf. Error: 1.410 Using 3 X-ray Sources and 6 DSS Sources DSS Refined RA, Dec: 16 45 21.68 +44 50 19.8 ; 90% Conf. ["]= 1.685 Version: 0.3 (Thu Jul 16 08:11:50 UTC 2009) Using 652 Counts, Exposure [s]= 4241.48 XRT/SDSS Frame Offset: RA 0.000 , Dec 0.000 , 90% Conf. Error: 6.420 Warning: No optical/X-ray sources to match. SDSS Refined RA, Dec: 16 45 21.73 +44 50 18.4 ; 90% Conf. ["]= 6.591 XRT/DSS Frame Offset: RA -0.600 , Dec 2.100 , 90% Conf. Error: 7.250 Using 1 X-ray Sources and 3 DSS Sources DSS Refined RA, Dec: 16 45 21.67 +44 50 20.5 ; 90% Conf. ["]= 7.402 Version: 0.2 (Thu Jul 16 05:11:45 UTC 2009) Using 543 Counts, Exposure [s]= 2724.59 XRT/SDSS Frame Offset: RA 0.000 , Dec 0.000 , 90% Conf. Error: 6.420 Warning: No optical/X-ray sources to match. SDSS Refined RA, Dec: 16 45 21.74 +44 50 18.7 ; 90% Conf. ["]= 6.566 XRT/DSS Frame Offset: RA -0.200 , Dec 2.200 , 90% Conf. Error: 7.440 Using 1 X-ray Sources and 3 DSS Sources DSS Refined RA, Dec: 16 45 21.72 +44 50 20.9 ; 90% Conf. ["]= 7.566 Version: 0.1 (Thu Jul 16 04:31:44 UTC 2009) Using 425 Counts, Exposure [s]= 1569.55 XRT/SDSS Frame Offset: RA 0.000 , Dec 0.000 , 90% Conf. Error: 6.420 Warning: No optical/X-ray sources to match. SDSS Refined RA, Dec: 16 45 21.72 +44 50 18.7 ; 90% Conf. ["]= 6.480 XRT/DSS Frame Offset: RA 0.000 , Dec 0.000 , 90% Conf. Error: 6.420 Warning: No optical/X-ray sources to match. DSS Refined RA, Dec: 16 45 21.72 +44 50 18.7 ; 90% Conf. ["]= 6.480 Version: 0.0 (Thu Jul 16 01:13:30 UTC 2009) Using 211 Counts, Exposure [s]= 511.48 XRT/SDSS Frame Offset: RA 0.000 , Dec 0.000 , 90% Conf. Error: 6.420 Warning: No optical/X-ray sources to match. SDSS Refined RA, Dec: 16 45 21.67 +44 50 19.6 ; 90% Conf. ["]= 6.551 XRT/DSS Frame Offset: RA 0.000 , Dec 0.000 , 90% Conf. Error: 6.420 Warning: No optical/X-ray sources to match. DSS Refined RA, Dec: 16 45 21.67 +44 50 19.6 ; 90% Conf. ["]= 6.551