MASTER: IceCube 171106A follow up observations

ATel #11850; V. Lipunov, E. Gorbovskoy, V. Kornilov, N. Tiurina, A. Kuznetsov, V. Chazov, I. Gorbunov, D. Vlasenko, D. Zimnukhov, D. Kuvshinov, P. Balanutsa, V. Vladimirov (Lomonosov MSU, SAI), D. Buckley (SAAO), R. Rebolo, M. Serra, N. Lodieu (IAC), V. Senik, A. Tlatov (KSS Pulkovo observatory), R. Podesta, F. Podesta, C. Lopez, C. Francile (OAFA), H. Levato (ICATE), O. Gres, N. M.Budnev , Yu. Ishmuhametova (ISU), A. Gabovich, V. Yurkov, Yu. Sergienko (BSPU)
on 14 Jul 2018; 13:45 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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MASTER Global Robotic Net observed the field of the IceCube EHE event IceCube-171106A Taboada et al. GCN 22105 (Lipunov et al. GCN #22945; also observed by Swift, see Keivani et al. ATEL #10942)
The IC171106A altitude at alert time (Date: 17/11/06 18:39:39.21 UT was

MASTER-IAC (Tenerife)
Alert Altitude(AA): 54.48
Sun Altitude (SA): -5.64
MASTER-SAAO (South Africa)
AA: 49.68
SA: -18.49
MASTER-Kislovodsk (Russia)
AA: 45.89
SA: -50.59
MASTER-Tavrida (Russia)
AA: 48.79
SA: -44.81

MASTER-Kislovodsk pointed to the IC 171106A at 2017-11-06 18:40:45UT, 66s after trigger time . There were 4 alert images:
Date,UT Exp mlim MASTERtube
2017-11-06 18:50:16 180 19.3 EAST
2017-11-06 18:47:06 180 19.3 EAST
2017-11-06 18:43:56 180 19.1 EAST
2017-11-06 18:40:45 180 18.9 EAST
then MASTER-Kislovodsk returned to Fermi trigger 531665037 inspection

MASTER-SAAO was pointed to IC 171106A at 2017-11-06 18:40:50UT 71s after trigger time Unfiltered limits of alert images are the following:

Date,UT Exp mlim MASTER_tube
2017-11-06 18:40:50 540 20.3 E
2017-11-06 18:40:50 180 19.9 E
2017-11-06 18:40:50 540 20.6 W
2017-11-06 18:40:50 180 20.2 W
2017-11-06 18:44:07 180 20.0 E
2017-11-06 18:44:07 180 20.2 W
2017-11-06 18:47:22 180 20.0 E
2017-11-06 18:50:38 180 20.0 E
2017-11-06 18:50:38 180 20.1 W
2017-11-29 18:44:51 180 19.4 E
2017-11-29 18:44:51 540 19.6 E
2017-11-29 18:44:51 180 19.1 W
2017-11-29 18:44:51 540 19.9 W
2017-11-29 18:49:52 180 19.0 E
2017-11-29 18:49:52 180 19.4 W
2017-11-29 18:53:56 180 18.9 E
2017-11-29 18:53:56 180 19.1 W
2017-11-29 19:11:09 540 19.8 E
2017-11-29 19:11:09 180 19.0 E
2017-11-29 19:11:09 180 19.4 W
2017-11-29 19:11:09 540 20.0 W
2017-11-29 19:17:27 180 19.1 E
2017-11-29 19:17:27 180 19.3 W
2017-11-29 19:24:21 180 19.1 E
2017-11-29 19:24:21 180 19.3 W
2017-11-29 19:30:27 180 19.0 E
2017-11-29 19:30:27 180 19.3 W

MASTER-IAC pointed to the IC 171106A at 2017-11-06 18:41:11UT 91.8s after trigger time. The Sun_Alt was -5.64, MASTER automatical alert planer knew MASTER-Kislovodsk and MASTER-SAAO alert observations, so MASTER-IAC followed Fermi inspection after sunset, and followed IceCube inspection on next day by usual inspect program

2017-11-07 19:33:49 540 20.0 E
2017-11-07 19:33:49 180 19.3 E
2017-11-07 19:37:42 540 20.0 W
2017-11-07 19:37:42 180 19.6 W
2017-11-07 19:37:36 180 19.4 E
2017-11-07 19:41:35 180 19.6 W
2017-11-07 19:41:35 180 19.4 E
2017-11-07 19:45:36 180 17.8 W
2017-11-07 19:49:45 180 18.7 E
2017-11-07 19:53:17 180 18.9 E
2017-11-07 19:53:17 180 18.0 W

MASTER-Tavrida started usual inspect program on 2017-11-13 19:03:59 UT
Date 2017-11-13,UT Exp mlim MASTER_tube
19:55:03 180 18.4 E
19:51:01 180 18.8 W
19:47:28 180 18.8 W
19:32:55 180 18.8 W
19:29:21 180 18.8 W
19:25:45 540 19.5 W
19:25:45 180 18.8 W
19:07:32 180 18.0 W
19:03:59 180 18.0 W

There is one BL Lac type object (Sowards-Emmerd+, 2005) J223810.3+072413 .

MASTER Global Robotic Net