{
  "bibcode": "2020GCN.27851....1B",
  "body": "S. Belkin (IKI), A. Moskvitin (SAO RAS), A. Pozanenko (IKI), E. Mazaeva \n(IKI),  A. Volnova (IKI)  report on behalf of larger GRB IKI FuN \ncollaboration:\n\nWe observed   GRB 200524A (Dirirsa et al., GCN 27797; Pookalil et al., \nGCN 27809; Capalbi  et al., GCN 27811; Gupta et al., GCN 27818) with \nZeiss-1.0 m telescope  of SAO RAS observatory  in  Rc-filter. Optical \nafterglow discovered by ZTF (Ho et al., GCN 27799) and observed by \nseveral observations (Kumar et al., GCN 27800; Rumyantsev et al., GCN \n27802; Sanwal et al., GCN 27803; Perley et al., GCN 27805; Kumar et al., \nGCN 27806; de Ugarte Postigo et al., GCN 27807; Blazek et al., GCN \n27810; Ogawa et al., GCN 27813; Izzo, GCN 27817; Belkin et al., GCN \n27820; Kuin et al., GCN 27825).\n\nPreliminary photometry is following\n\nDate       UT start   t-T0      Filter  Exp.   OT    Err.   UL (3sigma)\n                        (mid, days)      (s)\n\n2020-05-27 21:48:28   3.71143   Rc      2400   22.54  0.20  23.6\n2020-05-28 22:17:40   4.73171   Rc      2400   n/d    n/d   22.6\n\nThe photometry is based on the nearby stars of SDSS DR12 catalog and \nLupton' transformation gri -> R.",
  "circularId": 27851,
  "createdOn": 1590744563000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 200524A: SAO RAS optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 200524A"
}