| Object | UT Date | UT | JD | Comp Star | ΔV | σ(ΔV) | V | σ(V) |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) |
| BL Lac | 2017-07-19 | 11:17:43 | 2457953.97064 | B | 1.182 | 0.006 | 14.12 | 0.01 |
| BL Lac | 2017-07-22 | 11:11:53 | 2457956.96659 | B | 1.282 | 0.004 | 14.22 | 0.01 |
| BL Lac | 2017-07-23 | 10:08:26 | 2457957.92252 | B | 1.325 | 0.004 | 14.26 | 0.01 |
