| Object | UT Date | UT | JD | Comp Star | ΔV | σ(ΔV) | V | σ(V) |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) |
| Mrk 421 | 2010-10-08 | 12:21:57 | 2455478.01524 | 1 | -1.153 | 0.004 | 13.21 | 0.02 |
| Mrk 421 | 2010-10-09 | 12:14:14 | 2455479.00988 | 1 | -1.139 | 0.003 | 13.22 | 0.02 |
| Mrk 421 | 2010-11-10 | 11:32:49 | 2455510.98112 | 1 | -1.284 | 0.003 | 13.08 | 0.02 |
| Mrk 421 | 2010-11-11 | 11:34:35 | 2455511.98235 | 1 | -1.333 | 0.003 | 13.03 | 0.02 |
| Mrk 421 | 2010-11-12 | 11:31:25 | 2455512.98015 | 1 | -1.237 | 0.003 | 13.12 | 0.02 |
| Mrk 421 | 2010-11-13 | 11:48:58 | 2455513.99234 | 1 | -1.265 | 0.003 | 13.09 | 0.02 |
| Mrk 421 | 2010-11-15 | 11:25:21 | 2455515.97594 | 1 | -1.340 | 0.003 | 13.02 | 0.02 |
| Mrk 421 | 2010-12-01 | 12:06:43 | 2455532.00466 | 1 | -1.634 | 0.006 | 12.73 | 0.02 |
| Mrk 421 | 2010-12-02 | 11:35:50 | 2455532.98322 | 1 | -1.628 | 0.002 | 12.73 | 0.02 |
| Mrk 421 | 2010-12-05 | 11:23:45 | 2455535.97483 | 1 | -1.633 | 0.002 | 12.73 | 0.02 |
| Mrk 421 | 2010-12-08 | 11:47:40 | 2455538.99144 | 1 | -1.571 | 0.002 | 12.79 | 0.02 |
| Mrk 421 | 2010-12-09 | 11:50:02 | 2455539.99307 | 1 | -1.596 | 0.006 | 12.76 | 0.02 |
| Mrk 421 | 2011-01-02 | 11:13:20 | 2455563.96759 | 1 | -1.849 | 0.002 | 12.51 | 0.02 |
| Mrk 421 | 2011-01-04 | 09:20:56 | 2455565.88954 | 1 | -1.881 | 0.001 | 12.48 | 0.02 |
| Mrk 421 | 2011-01-08 | 09:49:20 | 2455569.90926 | 1 | -1.875 | 0.002 | 12.49 | 0.02 |
| Mrk 421 | 2011-02-02 | 09:05:32 | 2455594.87884 | 1 | -1.713 | 0.001 | 12.65 | 0.02 |
| Mrk 421 | 2011-02-03 | 08:30:08 | 2455595.85425 | 1 | -1.650 | 0.006 | 12.71 | 0.02 |
| Mrk 421 | 2011-02-05 | 08:44:38 | 2455597.86433 | 1 | -1.623 | 0.002 | 12.74 | 0.02 |
| Mrk 421 | 2011-02-06 | 09:02:46 | 2455598.87692 | 1 | -1.563 | 0.002 | 12.80 | 0.02 |
| Mrk 421 | 2011-02-07 | 08:07:22 | 2455599.83845 | 1 | -1.542 | 0.002 | 12.82 | 0.02 |
| Mrk 421 | 2011-02-08 | 08:21:54 | 2455600.84854 | 1 | -1.530 | 0.002 | 12.83 | 0.02 |
| Mrk 421 | 2011-03-02 | 08:08:49 | 2455622.83946 | 1 | -1.851 | 0.002 | 12.51 | 0.02 |
| Mrk 421 | 2011-03-04 | 08:12:09 | 2455624.84177 | 1 | -1.904 | 0.002 | 12.46 | 0.02 |
| Mrk 421 | 2011-03-05 | 07:08:23 | 2455625.79749 | 1 | -1.879 | 0.002 | 12.48 | 0.02 |
| Mrk 421 | 2011-03-06 | 07:19:58 | 2455626.80553 | 1 | -1.826 | 0.003 | 12.53 | 0.02 |
| Mrk 421 | 2011-03-29 | 08:10:31 | 2455649.84064 | 1 | -1.657 | 0.002 | 12.70 | 0.02 |
| Mrk 421 | 2011-03-30 | 08:02:15 | 2455650.83489 | 1 | -1.646 | 0.019 | 12.71 | 0.02 |
| Mrk 421 | 2011-04-04 | 08:02:00 | 2455655.83472 | 1 | -1.768 | 0.002 | 12.59 | 0.02 |
| Mrk 421 | 2011-04-05 | 07:20:15 | 2455656.80573 | 1 | -1.733 | 0.003 | 12.63 | 0.02 |
| Mrk 421 | 2011-04-07 | 08:14:33 | 2455658.84344 | 1 | -1.785 | 0.008 | 12.57 | 0.02 |
| Mrk 421 | 2011-04-08 | 07:34:51 | 2455659.81586 | 1 | -1.803 | 0.008 | 12.56 | 0.02 |
| Mrk 421 | 2011-05-26 | 05:06:54 | 2455707.71313 | 1 | -1.145 | 0.002 | 13.22 | 0.02 |
| Mrk 421 | 2011-05-27 | 05:46:51 | 2455708.74087 | 1 | -1.098 | 0.002 | 13.26 | 0.02 |
| Mrk 421 | 2011-05-28 | 06:07:03 | 2455709.75490 | 1 | -1.136 | 0.002 | 13.22 | 0.02 |
| Mrk 421 | 2011-05-29 | 05:35:51 | 2455710.73323 | 1 | -1.125 | 0.002 | 13.24 | 0.02 |
| Mrk 421 | 2011-05-30 | 06:55:16 | 2455711.78838 | 1 | -1.144 | 0.002 | 13.22 | 0.02 |
| Mrk 421 | 2011-06-15 | 05:11:09 | 2455727.71608 | 1 | -1.307 | 0.002 | 13.05 | 0.02 |
| Mrk 421 | 2011-06-27 | 05:10:32 | 2455739.71564 | 1 | -1.308 | 0.014 | 13.05 | 0.02 |
| Mrk 421 | 2011-06-28 | 04:04:46 | 2455740.66998 | 1 | -1.294 | 0.004 | 13.07 | 0.02 |
| Mrk 421 | 2011-07-01 | 04:05:06 | 2455743.67021 | 1 | -1.145 | 0.004 | 13.21 | 0.02 |
| Mrk 421 | 2011-07-02 | 04:46:04 | 2455744.69865 | 1 | -1.182 | 0.015 | 13.18 | 0.02 |