{
  "bibcode": "2020GCN.26973....1L",
  "body": "V. Lipunov, O.Gress, E. Gorbovskoy, N.Tiurina, V.Kornilov, P.Balanutsa,A.Kuznetsov,\nV. Vladimirov, D. Vlasenko, F.Balakin, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,\nD. Kuvshinov, V.Shumkov (Lomonosov Moscow State University, SAI, Physics Department),\nD. Buckley(South African Astronomical Observatory),\nR. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),\nA. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),\nR. Podesta, C.Lopez, F. Podesta, C.Francile(Observatorio Astronomico Felix Aguilar OAFA),\nH. Levato(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),\nO.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API),\nV. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk Educational State University)\n\nMASTER Global Robotic Net (http://observ.pereplet.ru, Lipunov et al., 2010,Advances in Astronomy,v. 2010, 30L)\nobserved IceCube-HAWC 200202A (error-bx AMON GCN 26963)  since 2020-02-02 \n21:50:53 UT.o\n\nMASTER-Amur robotic telescope  (Global MASTER-Net: \nhttp://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, \nvol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical \nUniversity) was pointed to the IceCube Alert 200202.33 (trigger No \n20200202075852,13h 21m 12.00s , +12d 42m 36.0s, R=0.3) errorbox  49921 sec \nafter trigger time at 2020-02-02 21:50:53 UT, with upper limit up to  17.2 \nmag. Observations started at twilight.  The observations began at zenith \ndistance = 44 deg. The sun  altitude  is -11.8 deg.\n\nMASTER-Tunka robotic telescope  located in Russia (Applied Physics \nInstitute, Irkutsk State University) was pointed to the IceCube Alert \n200202.33 errorbox  50850 sec after trigger time at 2020-02-02 22:06:22 \nUT, with upper limit up to  18.2 mag.\nThe observations began at zenith distance = 39 deg., sun altitude  was -24.6 deg.\n\nMASTER-SAAO robotic telescope  located in South Africa (South African \nAstronomical Observatory) was pointed to the IceCube Alert 200202.33 \nerrorbox  53716 sec after trigger time at 2020-02-02 22:54:08 UT, with \nupper limit up to  20.4 mag.\nThe observations began at zenith distance = 76 deg., sun altitude  was -41.2 deg.\n\nMASTER-IAC robotic telescope  located in Spain (IAC Teide Observatory) was \npointed to the IceCube Alert 200202.33 errorbox  59842 sec after trigger \ntime at 2020-02-03 00:36:14 UT, with upper limit up to  21.5 mag.\nThe observations began at zenith distance = 69 deg.,sun altitude was -75.5 deg.\nThe error-box galactic latitude b = 73 deg., longitude l = 332 deg.\n\nAuto-detection system marginally found \npossible OT in SDSS J132141.10+125747.3 with m  ~ 19.6 \n(host galaxy photom.z~0.47749).\nBut hand analysis do not strong supply this \nresuts.\n\nThere is QSO SDSS_J13210+1237 in error-box,\nbut it didn't change the brightness\n\nReduction and analysys of galaxy clusters inside error-box will be continued.",
  "circularId": 26973,
  "createdOn": 1580736610000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "AMON IceCube-HAWC_200202A: MASTER optical inspect",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "HAWC-200202A"
}