{
  "bibcode": "2020GCN.27599....1L",
  "body": "V. Lipunov, N.Tyurina,\nE. Gorbovskoy, V.Kornilov, P.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 Observatory),\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 \nICATE),\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 OTJ 004724.94-252125.6s  (AT2020hok)\n\nMASTER-SAAO auto-detection system ( Lipunov et al., \"MASTER Global Robotic\nNet\", Advances in Astronomy, 2010, 30L )\n  proposed interesting  source at (RA, Dec) = 00h 47m 24.94s -25d 21m 25.6s\non  2020-04-17.15061 UT during GRB 200415 error box inspection \n(GCN  27579; 27580; 27586; 27595; 27597;).\n\nInside galaxy NGC 0253 (Svinkin, 27595; Frederiks 27597;) there \nis  an  interesting extended object with an XMM X-ray source  at 00 47 \n25.0800 -25 21 23.760 .\nThis is may be globular cluster: B-V ~ 1\nThe  unfiltered magnitude is 15.8m (mlim 17.9).\nThe source  is seen in 24 images. No optical variability detected.\n\nWe have reference image on 2018-08-10.99113 UT with  unfiltered \nmlim=20.3m.\n\nFollow up observations are required.\n\nThe cover map is available at\nhttps://master.sai.msu.ru/site/master2/event.php?id=1337630\n\nThe inspection  and reference images are available at:\n\nhttp://master.sai.msu.ru/static/OT/183315.33623157.0.png",
  "circularId": 27599,
  "createdOn": 1587109777000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 200415A: MASTER imspection and possible localisation",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 200415A"
}