{
  "bibcode": "2018GCN.22577....1V",
  "body": "A. Volnova  (IKI), A. Pozanenko (IKI),  E. Mazaeva (IKI), R. Inasaridze \n(AbAO),  V. Ayvazian  (AbAO),  O. Kvaratskhelia (AbAO), G. Kapanadze \n(AbAO),  I. Molotov (KIAM), report on behalf of larger GRB follow-up \ncollaboration:\n\nWe observed the field of GRB 180331B  (Lien  et al., GCN 22573) with \nAS-32 (0.7m) telescope of Abastumani Observatory starting on Mar. 31 \n(UT) 17:49:41.   We do not detect any object within enhanced XRT \nposition (Goad et al., GCN 22575). Preliminary photometry of the field \nis following.\n\nDate        UT start   t-T0      Filter Exp.   OT    Err. UL\n                      (mid, days)        (s)\n\n2018-03-31  17:49:41   0.11370   CR     38*60  n/d   n/d  22.3\n\nThe photometry is based on nearby USNO-B1.0 stars (R2 magnitude).",
  "circularId": 22577,
  "createdOn": 1522553442000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 180331B: AbAO optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 180331B"
}