Table B.1
Optical observations from MASTER and ASAS-SN.
| Telescope | Time, UTC | Time–t0 (days) | Filter | Number of exposures and exposure time | 5σ limiting mag |
|
|
|||||
| ASAS-SN Brutus | 2016-01-20.24 | −28.57 | V | 3 (90 s) | 17.5 |
| MASTER-IAC | 2016-01-22 22:56:34 | −25.85 | 3 (60 s) | 18.5 | |
| ASAS-SN Brutus | 2016-01-23.25 | −25.56 | V | 3 (90 s) | 17.1 |
| MASTER-IAC | 2016-01-23 22:14:49 | −24.88 | 3 (60 s) | 18.2 | |
| MASTER-IAC | 2016-01-24 23:09:39 | −23.84 | 3 (60 s) | 18.1 | |
| ASAS-SN Brutus | 2016-01-26.23 | −22.58 | V | 3 (90 s) | 17.4 |
| MASTER-Tunka | 2016-01-27 13:12:46 | −21.25 | 3 (60 s) | 19.1 | |
| ASAS-SN Brutus | 2016-01-30.23 | −18.58 | V | 3 (90 s) | 17.7 |
| ASAS-SN Brutus | 2016-02-01.22 | −16.58 | V | 3 (90 s) | 17.8 |
| ASAS-SN Brutus | 2016-02-03.25 | −14.56 | V | 3 (90 s) | 17.7 |
| MASTER-IAC | 2016-02-14 20:03:58 | −2.97 | 3 (60 s) | 18.7 | |
| MASTER-Kislovodsk | 2016-02-15 17:56:50 | −2.06 | 6 (60 s) | 18.7 | |
| MASTER-Kislovodsk | 2016-02-18 17:15:58 | 0.91 | 25×2 (180 s) | 19.4 (18.6) | |
| MASTER-Tunka | 2016-02-18 17:20:21 | 0.92 | 3 (60 s) | 17.2 | |
| ASAS-SN Brutus | 2016-02-19.22 | 1.41 | V | 20 (90 s) | 18.2 |
| MASTER-Kislovodsk | 2016-02-19 16:37:32 | 1.89 | 18×2 (180 s) | 19.2 (18.5) | |
| MASTER-IAC | 2016-02-23 20:11:37 | 6.03 | 20×2 (180 s) | 20.7 (19.5) | |
| MASTER-IAC | 2016-02-24 20:32:18 | 7.05 | 4×2 (180 s) | 20.5 (19.8) | |
| MASTER-IAC | 2016-02-25 21:36:18 | 8.09 | 4×2 (180 s) | 20.5 (19.7) | |
| MASTER-Kislovodsk | 2016-02-26 18:49:01 | 8.98 | 12×2 (180 s) | 19.9 (19.2) | |
| MASTER-Kislovodsk | 2016-02-27 16:21:47 | 9.87 | 20×2 (180 s) | 20.3 (19.9) | |
| MASTER-IAC | 2016-02-27 22:40:13 | 10.14 | 3×2 (180 s) | 19.4 (18.9) | |
| MASTER-IAC | 2016-02-27 22:59:51 | 10.15 | B | 2 (180 s) | 19.0 (18.7) |
| MASTER-IAC | 2016-02-27 22:59:51 | 10.15 | I | 2 (180 s) | 17.0 |
| MASTER-IAC | 2016-02-28 23:08:13 | 11.16 | 6×2 (180 s) | 17.8 | |
| MASTER-Kislovodsk | 2016-02-29 17:51:45 | 11.94 | 18×2 (180 s) | 20.3 (19.8) | |
| MASTER-IAC | 2016-02-29 20:17:28 | 12.04 | 4×2 (180 s) | 20.4 (19.9) | |
| MASTER-IAC | 2016-02-29 20:28:52 | 12.05 | B | 2 (180 s) | 20.2 |
| MASTER-IAC | 2016-02-29 20:28:52 | 12.05 | I | 2 (180 s) | 18.0 |
| MASTER-Kislovodsk | 2016-03-01 16:31:39 | 12.88 | 32 (180 s) | 20.3 (19.9) | |
| MASTER-IAC | 2016-03-01 21:51:21 | 13.10 | 4×2 (180 s) | 19.9 (19.3) | |
| MASTER-IAC | 2016-03-01 22:14:23 | 13.12 | B | 2 (180 s) | 18.8 |
| MASTER-IAC | 2016-03-01 22:14:23 | 13.12 | I | 2 (180 s) | 17.2 |
| MASTER-Tunka | 2016-03-02 13:41:01 | 13.76 | 12 (60 s) | 18.4 | |
| MASTER-Kislovodsk | 2016-03-02 16:40:35 | 13.89 | 10 (180 s) | 19.6 (19.0) | |
| MASTER-Kislovodsk | 2016-03-03 17:04:55 | 14.90 | 6 (180 s) | 17.6 (17.2) | |
| MASTER-IAC | 2016-03-03 20:11:40 | 15.03 | 3×2 (180 s) | 20.2 (19.7) | |
| MASTER-IAC | 2016-03-03 20:20:15 | 15.04 | B | 2 (180 s) | 19.4 |
| MASTER-IAC | 2016-03-03 20:20:15 | 15.04 | I | 2 (180 s) | 17.8 |
| MASTER-Kislovodsk | 2016-03-04 16:20:27 | 15.87 | 6 (180 s) | 18.2 | |
| MASTER-IAC | 2016-03-04 20:41:12 | 16.06 | 12×2 (180 s) | 20.2 (19.3) | |
| MASTER-Tunka | 2016-03-06 12:24:08 | 17.71 | 8 (60 s) | 18.8 | |
| MASTER-Tunka | 2016-03-07 12:18:37 | 18.71 | 12 (60–180 s) | 20.0 (19.3) | |
| MASTER-IAC | 2016-03-07 21:44:32 | 19.09 | 3×2 (180 s) | 19.4 (18.7) | |
| MASTER-Tunka | 2016-03-08 12:17:08 | 19.71 | 6 (180 s) | 18.5 | |
| MASTER-Kislovodsk | 2016-03-08 17:19:59 | 19.92 | 6 (60 s) | 19.1 | |
| MASTER-IAC | 2016-03-08 20:15:08 | 20.04 | 3×2 (180 s) | 20.3 (19.6) | |
| MASTER-Tunka | 2016-03-09 12:18:41 | 20.71 | 6 (180 s) | 20.0 (19.3) | |
| MASTER-IAC | 2016-03-09 20:13:47 | 21.04 | 3×2 (180 s) | 20.2 (19.6) | |
| MASTER-Tunka | 2016-03-10 13:49:52 | 21.77 | 6 (180 s) | 19.5 (19.0) | |
| MASTER-Kislovodsk | 2016-03-10 17:57:18 | 21.94 | 10 (60 s) | 19.1 | |
| MASTER-IAC | 2016-03-10 20:16:12 | 22.03 | 4×2 (180 s) | 20.3 (19.6) | |
| MASTER-IAC | 2016-03-11 20:11:23 | 23.04 | 4×2 (180 s) | 19.9 (19.2) | |
| MASTER-Tunka | 2016-03-13 13:39:33 | 24.76 | 3 (180 s) | 18.8 | |
| MASTER-IAC | 2016-03-13 20:18:08 | 25.04 | 3×2 (180 s) | 20.3 (19.5) | |
| MASTER-Tunka | 2016-03-15 13:41:19 | 26.76 | 6 (180 s) | 19.0 (18.5) | |
| MASTER-IAC | 2016-03-17 20:31:50 | 29.05 | 3×2 (180 s) | 19.0 (18.6) | |
| MASTER-IAC | 2016-03-18 20:31:42 | 30.05 | 4×2 (180 s) | 19.6 (19.0) | |
| MASTER-IAC | 2016-03-19 20:35:02 | 31.05 | 3×2 (180 s) | 19.6 (18.7) | |
| MASTER-IAC | 2016-03-21 20:30:07 | 33.05 | 3×2 (180 s) | 18.2 | |
Notes. The columns list the telescope, the start time of the observation, the time relative to the neutrino alert, the band if a filter was used, the number of exposures, the time per exposure and a typical limiting magnitude. A white filter was used for most MASTER observations. The factor ×2 indicates that both tubes of the MASTER twin telescopes pointed at the same position. The limiting magnitudes are for co-added images and the limits for individual images are given in parentheses. All limits correspond to the 5σ level.
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