{
  "bibcode": "2019GCN.24949....1B",
  "body": "S. Belkin (IKI), A. Kusakin (FAPHI), I. Reva (FAPHI), A. Novichonok \n(KIAM), A. Pozanenko (IKI), E. Mazaeva (IKI),  A. Volnova (IKI), I. \nMolotov (KIAM) report on behalf of larger GRB IKI FuN collaboration:\n\nWe observed the field of GRB 190630B (Krimm, et al., GCN 24913)   with \nZeiss-1000 1-m telescope of Tien Shan Astronomical Observatory starting \non June, 30 (UT) 18:40:21  and  Koshka Observatory starting on June, 30 \n(UT) 20:38:42 in  R-filter. We do not detect the afterglow (Zheng, et \nal., GCN  24914; Zheng, et al., GCN  24931). Preliminary photometry of \nthe field is following\n\nDate       UT start t-T0    Filter Exp.  OT    Err. UL   Observatory\n                     (mid, days)    (s)\n\n2019-06-30 18:40:21 0.55999 R      6720  n/d   n/d  22.3 TSHAO\n2019-06-30 20:38:42 0.63060 R      3780  n/d   n/d  21.9 Koshka\n\nThe photometry is based on several nearby USNO-B1.0 stars.\nUSNO-B1.0_id R2\n1315-0255078 18.06\n1314-0253302 17.18\n1314-0253267 15.88",
  "circularId": 24949,
  "createdOn": 1562015622000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 190630B: Tien Shan and Koshka Zeiss-1000 optical upper limits",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 190630B"
}