{
  "bibcode": "2020GCN.27556....1L",
  "body": "V. Lipunov (Lomonosov MSU) and  V. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk Educational State University)\nE. Gorbovskoy, V.Kornilov, N.Tyurina,\nP.Balanutsa,A.Kuznetsov,F.Balakin,\nV.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,\nD.Kuvshinov(Lomonosov Moscow State University, SAI, Physics Department),\nA. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo \nObservatory),\nR. Podesta, C.Lopez, F. Podesta, C.Francile(Observatorio Astronomico Felix\nAguilar OAFA),\nH.Levato(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),\nR. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),\nD. Buckley(South African Astronomical Observatory),\nO.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API),\nV. Yurkov, A. Gabovich, Yu. Sergienko(Blagoveschensk Educational State\nUniversity)\n\n\nMASTER-Amur  ( located near  Russian Kosmodrom Vostochniy) comeback to \nMASTER OT J183315.33+623157.0  (Lipunov et al., GCN 27555) \nafter 2 hours and we find optical transient with limit ~ 17.5 . So this \nis real afterglow:\nat (RA, Dec) = 18h 33m 15.33s +62d 31m 57.0s on\n\nThe OT is seen in 2 images. There is no minor planet at this place.\n\nWe have reference image on 2016-08-12.64123 UT with unfiltered mlim= 19.3m.\n\nSpectral observations are required.\n\nThe discovery and reference images are available at:\n\nhttp://master.sai.msu.ru/static/OT/183315.33623157.0.png\n\n[GCN OPS NOTE(13apr20): In the first senstence, change \"J111012.51+274912.8\"\nto \"J183315.33+623157.0\".",
  "circularId": 27556,
  "createdOn": 1586706427000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 200412B: MASTER-Amur Optical Couterpart in Gagarin day!",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 200412B"
}