TABLE 1-
Absolute photometry of HRX-BL Lacs in the B band
Object name |
Date |
Julian Date (2451000.0+) |
B mag |
Err |
Exp (s) |
alphaOX |
alphaRO |
1RXS J085916.5+834450 |
2000/05/04 |
669.3484 |
19.73 |
0.19 |
600 |
0.84 |
0.39 |
B2 0906+31 |
2000/05/02 |
667.3408 |
18.28 |
0.07 |
240 |
0.97 |
0.52 |
1RXS J091324.6+813318 |
2000/05/02 |
667.3582 |
20.7 |
0.10 |
600 |
0.59 |
0.40 |
1RXS J091651.8+523829 |
2000/05/02 |
667.3471 |
18.33 |
0.05 |
600 |
0.97 |
0.50 |
1RXS J092401.1+053350 |
2000/05/04 |
669.3724 |
19.60 |
0.09 |
500 |
0.82 |
0.36 |
1RXS J092804.2+744714 |
2000/05/02 |
667.3694 |
20.7 |
0.10 |
800 |
0.72 |
0.62 |
1RXS J095225.8+750216 |
2000/05/04 |
669.3713 |
19.20 |
0.19 |
500 |
0.85 |
0.37 |
1RXS J095929.8+212340 |
2000/05/04 |
669.3817 |
19.06 |
0.06 |
400 |
0.81 |
0.45 |
1RXS J100811.5+470526 |
2000/05/04 |
669.3959 |
19.92 |
0.10 |
400 |
0.58 |
0.34 |
1RXS J101244.4+422959 |
2000/05/04 |
669.3890 |
18.42 |
0.05 |
300 |
0.85 |
0.45 |
1RXS J101616.4+410817 |
2000/05/04 |
669.4036 |
19.46 |
0.05 |
200 |
0.76 |
0.40 |
1RXS J105125.1+394329 |
2000/04/28 |
665.3856 |
19.0 |
0.18 |
800 |
0.87 |
0.34 |
1RXS J105607.0+025215 |
2000/05/02 |
667.3871 |
19.39 |
0.05 |
900 |
0.64 |
0.30 |
1RXS J105723.5+230317 |
2000/04/28 |
663.3798 |
19.74 |
0.05 |
600 |
0.73 |
0.37 |
1RXS J110021.3+401933 |
2000/05/02 |
667.4236 |
18.56 |
0.05 |
300 |
0.90 |
0.35 |
1RXS J110748.2+150217 |
2000/05/02 |
667.4153 |
18.4 |
0.20 |
400 |
0.94 |
0.41 |
1RXS J111131.2+345212 |
2000/05/02 |
667.4031 |
19.7 |
0.05 |
800 |
0.70 |
0.38 |
1ES 1118+424 |
2000/05/02 |
667.4313 |
18.0 |
0.20 |
200 |
0.89 |
0.34 |
1RXS J114930.4+243928 |
2000/05/02 |
667.4403 |
19.0 |
0.20 |
400 |
0.82 |
0.42 |
1RXS J121158.1+224236 |
2000/04/28 |
663.4011 |
19.55 |
0.05 |
500 |
0.71 |
0.43 |
1RXS J123014.2+251805 |
2000/05/02 |
667.4591 |
15.94 |
0.05 |
150 |
1.41 |
0.38 |
MS 1229.2+6430 |
2000/05/02 |
667.4515 |
18.0 |
0.20 |
300 |
1.03 |
0.41 |
MS 1235.4+6315 |
2000/04/28 |
663.4359 |
18.85 |
0.05 |
600 |
0.94 |
0.35 |
1RXS J123923.1+413245 |
2000/04/28 |
663.4240 |
20.34 |
0.10 |
600 |
0.75 |
0.43 |
1RXS J124141.2+344032 |
2000/04/28 |
663.4466 |
20.18 |
0.16 |
600 |
0.79 |
0.42 |
1RXS J124312.5+362743 |
2000/05/02 |
667.4660 |
16.60 |
0.10 |
300 |
1.08 |
0.38 |
1RXS J124818.9+582031 |
2000/05/02 |
667.4749 |
14.89 |
0.05 |
200 |
1.52 |
0.29 |
1RXS J125301.0+382629 |
2000/04/28 |
663.4631 |
18.9 |
0.20 |
500 |
0.76 |
0.27 |
1RXS J130255.6+505621 |
2000/04/28 |
663.4761 |
19.3 |
0.20 |
600 |
0.75 |
0.26 |
1RXS J132400.2+573918 |
2000/05/03 |
667.4944 |
17.75 |
0.05 |
200 |
1.17 |
0.37 |
1RXS J132615.0+293332 |
2000/04/28 |
663.4868 |
18.69 |
0.05 |
500 |
0.95 |
0.27 |
1RXS J134029.9+441007 |
2000/04/28 |
663.4965 |
19.25 |
0.11 |
400 |
0.83 |
0.48 |
1RXS J134104.8+395942 |
2000/05/03 |
667.4868 |
18.6 |
0.22 |
400 |
0.83 |
0.48 |
1RXS J135328.2+560102 |
2000/05/02 |
667.5000 |
19.10 |
0.05 |
600 |
0.92 |
0.37 |
1RXS J140450.2+655433 |
2000/04/28 |
663.5053 |
19.36 |
0.08 |
600 |
0.90 |
0.40 |
1RXS J141031.6+610020 |
2000/05/02 |
667.5774 |
19.89 |
0.07 |
1200 |
0.79 |
0.41 |
1RXS J142239.1+580159 |
2000/04/29 |
663.5169 |
17.82 |
0.07 |
400 |
0.76 |
0.27 |
MS 1443.5+6349 |
2000/04/29 |
663.5600 |
19.7 |
0.20 |
600 |
0.87 |
0.44 |
1RXS J144932.3+274630 |
2000/05/02 |
667.5362 |
20.03 |
0.10 |
600 |
0.63 |
0.58 |
1RXS J145603.4+504824 |
2000/04/29 |
663.5506 |
18.57 |
0.07 |
400 |
0.68 |
0.23 |
1RXS J145827.3+483250 |
2000/05/02 |
667.5146 |
20.37 |
0.09 |
1200 |
0.60 |
0.34 |
1RXS J150101.7+223812 |
2000/05/03 |
667.6018 |
15.53 |
0.05 |
180 |
1.39 |
0.19 |
1RXS J150842.2+270910 |
2000/04/29 |
663.5842 |
18.77 |
0.05 |
600 |
0.84 |
0.43 |
1RXS J151040.8+333515 |
2000/04/29 |
663.6097 |
18.50 |
0.07 |
500 |
0.98 |
0.30 |
1517+656 |
2000/04/29 |
663.5756 |
16.87 |
0.04 |
150 |
0.94 |
0.28 |
1ES 1533+5320 |
2000/04/29 |
663.6192 |
18.9 |
0.20 |
400 |
0.63 |
0.37 |
1ES 1544+820 |
2000/04/29 |
663.6287 |
17.1 |
0.18 |
300 |
1.03 |
0.35 |
1RXS J155411.8+241415 |
2000/04/29 |
663.6413 |
20.4 |
0.20 |
300 |
0.93 |
0.46 |
MS 1552.1+2020 |
2000/04/29 |
663.6021 |
18.45 |
0.05 |
300 |
0.78 |
0.45 |