{
  "bibcode": "2018GCN.22448....1M",
  "body": "E. Mazaeva (IKI),  A. Pozanenko (IKI),  A. Volnova  (IKI), R. Inasaridze \n(AbAO),  V. Ayvazian  (AbAO),  O. Kvaratskhelia (AbAO), G. Inasaridze \n(AbAO),  I. Molotov (KIAM), report on behalf of larger GRB follow-up \ncollaboration:\n\nWe observed the field of GRB 180224A  (Lien  et al., GCN 22442) with AS-32 \n(0.7m) telescope of Abastumani Observatory starting on Feb. 25  (UT) \n01:07:37.   The afterglow of GRB 180224A (Lien  et al., GCN 22442; \nVladimirov et al., GCN 22444) is  clearly detected in a stacked image. \nPreliminary photometry is following.\n\nDate              UT start      t-T0         Filter   Exp.    OT       Err. \nUL\n                      (mid, days)                            (s)\n\n2018-02-25  01:07:37   0.15162   CR     60*60  21.88   0.15  22.6\n\nThe photometry is based on nearby SDSS DR9 stars\n\nSDSS_id                            R_Lupton\nJ133038.17+380528.6    17.45\nJ133040.16+380535.7    17.10\nJ133051.85+380146.4    17.91\n\nWe confirm the fast decay of the afterglow and possible host galaxy \nassociation  SDSS DR9 J133044.06+380443.0 with the afterglow source (Watson \net al., GCN 22446).",
  "circularId": 22448,
  "createdOn": 1519589173000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 180224A: AbAO optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 180224A"
}