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GCN Circular 32036

Subject
IceCube Alert 220513.97: Global MASTER-Net observations report
Date
2022-05-13T23:39:13Z (2 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, 
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov,  D.Cheryasov, Ya.Kechin
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev
(Irkutsk State University, API),

L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez 
(INAOE, Guillermo Haro Astrophysics Observatory),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

A. Gabovich, V.Yurkov 
(Blagoveschensk Educational State University)


MASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) was pointed to the IceCube Alert 220513.97 (trigger No 61640402,14h 52m 53.04s , -01d 13m 08.4s, R=0.51) errorbox  25 sec after notice time and 80 sec after trigger time at 2022-05-13 23:24:33 UT, with upper limit up to  15.7 mag. The observations began at zenith distance = 71 deg. The sun  altitude  is -20.6 deg. 

MASTER-Tavrida robotic telescope  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the IceCube Alert 220513.97 errorbox  26 sec after notice time and 81 sec after trigger time at 2022-05-13 23:24:34 UT, with upper limit up to  14.6 mag. The observations began at zenith distance = 54 deg. The sun  altitude  is -23.0 deg. 

MASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the IceCube Alert 220513.97 errorbox  30 sec after notice time and 85 sec after trigger time at 2022-05-13 23:24:38 UT, with upper limit up to  17.4 mag. The observations began at zenith distance = 58 deg. The sun  altitude  is -20.9 deg. 

MASTER-SAAO robotic telescope  located in South Africa (South African Astronomical Observatory) was pointed to the IceCube Alert 220513.97 errorbox  30 sec after notice time and 85 sec after trigger time at 2022-05-13 23:24:38 UT, with upper limit up to  18.4 mag. The observations began at zenith distance = 36 deg. The sun  altitude  is -72.5 deg. 

The galactic latitude b = 49 deg., longitude l = 354 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1972449

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

      91 | 2022-05-13 23:24:33 |         MASTER-OAFA | (14h 51m 15.72s , -01d 48m 26.7s) |   C |    20 | 15.2 |        
      92 | 2022-05-13 23:24:34 |      MASTER-Tavrida | (14h 50m 52.41s , -01d 10m 38.6s) |  P\ |    20 | 14.6 |        
      96 | 2022-05-13 23:24:38 |   MASTER-Kislovodsk | (14h 53m 21.83s , -01d 07m 32.8s) |  P- |    20 | 16.1 |        
      96 | 2022-05-13 23:24:38 |   MASTER-Kislovodsk | (14h 53m 24.70s , -00d 43m 40.4s) |  P| |    20 | 16.4 |        
      91 | 2022-05-13 23:24:38 |         MASTER-SAAO | (14h 51m 55.50s , -01d 10m 04.1s) |   C |    10 | 17.1 |        
     116 | 2022-05-13 23:24:38 |         MASTER-SAAO | (14h 51m 55.49s , -01d 10m 04.1s) |   C |    60 | 18.2 |  Coadd 
     125 | 2022-05-13 23:25:07 |         MASTER-SAAO | (14h 51m 59.52s , -01d 08m 54.8s) |   C |    20 | 17.5 |        
     136 | 2022-05-13 23:25:18 |   MASTER-Kislovodsk | (14h 53m 15.00s , -01d 08m 22.2s) |  P- |    20 | 16.0 |        
     136 | 2022-05-13 23:25:18 |   MASTER-Kislovodsk | (14h 53m 17.95s , -00d 44m 30.5s) |  P| |    20 | 16.5 |        
     142 | 2022-05-13 23:25:24 |         MASTER-OAFA | (14h 51m 11.62s , -01d 49m 26.5s) |   C |    20 | 15.1 |        
     170 | 2022-05-13 23:25:47 |         MASTER-SAAO | (14h 51m 51.71s , -01d 09m 27.7s) |   C |    30 | 17.6 |        
     181 | 2022-05-13 23:25:59 |   MASTER-Kislovodsk | (14h 53m 15.00s , -01d 07m 26.5s) |  P- |    30 | 16.3 |        
     181 | 2022-05-13 23:25:59 |   MASTER-Kislovodsk | (14h 53m 18.00s , -00d 43m 35.4s) |  P| |    30 | 16.7 |        
     199 | 2022-05-13 23:26:16 |         MASTER-OAFA | (14h 51m 17.54s , -01d 49m 04.6s) |   C |    30 | 15.3 |        
     234 | 2022-05-13 23:26:46 |         MASTER-SAAO | (14h 51m 53.60s , -01d 08m 24.3s) |   C |    40 | 17.5 |        
     294 | 2022-05-13 23:26:46 |         MASTER-SAAO | (14h 51m 53.64s , -01d 08m 24.2s) |   C |   160 | 18.4 |  Coadd 
     238 | 2022-05-13 23:26:50 |   MASTER-Kislovodsk | (14h 53m 20.78s , -01d 08m 30.5s) |  P- |    40 | 16.5 |        
     238 | 2022-05-13 23:26:50 |   MASTER-Kislovodsk | (14h 53m 23.86s , -00d 44m 39.8s) |  P| |    40 | 16.9 |        
     265 | 2022-05-13 23:27:17 |         MASTER-OAFA | (14h 51m 14.14s , -01d 47m 39.2s) |   C |    40 | 15.4 |        
     299 | 2022-05-13 23:27:46 |         MASTER-SAAO | (14h 51m 59.09s , -01d 09m 21.1s) |   C |    50 | 17.9 |        
     304 | 2022-05-13 23:27:51 |   MASTER-Kislovodsk | (14h 53m 16.11s , -01d 09m 36.5s) |  P- |    50 | 16.6 |        
     304 | 2022-05-13 23:27:51 |   MASTER-Kislovodsk | (14h 53m 19.28s , -00d 45m 46.3s) |  P| |    50 | 16.9 |        
     346 | 2022-05-13 23:28:29 |         MASTER-OAFA | (14h 51m 14.37s , -01d 49m 22.4s) |   C |    60 | 15.6 |        
     384 | 2022-05-13 23:29:01 |   MASTER-Kislovodsk | (14h 53m 21.92s , -01d 09m 28.6s) |  P- |    70 | 16.7 |        
     384 | 2022-05-13 23:29:01 |   MASTER-Kislovodsk | (14h 53m 25.17s , -00d 45m 38.9s) |  P| |    70 | 17.1 |        
     388 | 2022-05-13 23:29:05 |         MASTER-SAAO | (14h 51m 53.54s , -01d 10m 16.8s) |   C |    70 | 17.7 |        
     448 | 2022-05-13 23:30:00 |         MASTER-OAFA | (14h 51m 17.46s , -01d 47m 38.7s) |   C |    80 | 15.7 |        
     479 | 2022-05-13 23:30:31 |   MASTER-Kislovodsk | (14h 53m 19.10s , -01d 08m 15.0s) |  P- |    80 | 16.8 |        
     479 | 2022-05-13 23:30:31 |   MASTER-Kislovodsk | (14h 53m 22.42s , -00d 44m 25.5s) |  P| |    80 | 17.1 |        
     488 | 2022-05-13 23:30:35 |         MASTER-SAAO | (14h 51m 59.26s , -01d 09m 45.5s) |   C |    90 | 18.2 |        
     570 | 2022-05-13 23:31:52 |         MASTER-OAFA | (14h 51m 12.15s , -01d 48m 24.0s) |   C |   100 | 15.7 |        
     594 | 2022-05-13 23:32:11 |   MASTER-Kislovodsk | (14h 53m 19.13s , -01d 09m 45.2s) |  P- |   110 | 17.0 |        
     594 | 2022-05-13 23:32:11 |   MASTER-Kislovodsk | (14h 53m 22.61s , -00d 45m 56.2s) |  P| |   110 | 17.4 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.
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