{
  "submittedHow": "email",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Alexander Moskvitin at SAO RAS <mosk@sao.ru>",
  "eventId": "GRB 260604C",
  "submitter": "Alexander Moskvitin at SAO RAS <mosk@sao.ru>",
  "editedOn": 1780902889593,
  "subject": "GRB 260604C: SAO RAS optical observations",
  "createdOn": 1780778524006,
  "circularId": 44852,
  "body": "A. Moskvitin (SAO RAS), O. Spiridonova (SAO RAS), A. Pozanenko (IKI),\nA. Volnova (IKI), N. Pankov (IKI) report on behalf of GRB follow-up team\n\nWe observed the field of long GRB 260604C discovered by Fermi\n(The Fermi GBM team, GCN 44822; Neights & Meegan, GCN 44831)\nand SVOM (Gotz et al., GCN 44823) with the Zeiss-1000 1-m telescope\nof SAO RAS equipped with the CCD photometer. We obtained 12 x 300 sec.\nimages in Rc band on June 05, 22:25:58--23:33:55 UT.\n\nThe OT (Lipunov, GCN 44827; Konno et al., GCN 44828; GCN 44836;\nZhu et al., GCN 44832; Becerra et al., GCN 44834; Hellot et al.,\nGCN 44835; Gompertz et al., GCN 44837; Gompertz et al., GCN 44843;\nChen et al.б GCN 44851) is clearly detected in our stacked image\nwith the following brightness:\n\nDate       UTstart  t-T0    Exp.   Filter Mag +/- Err.    UL\n                    (mid,d) (n*s)                         (3-sigma)\n2026.06.05T22:25:58 1.11195 12*300 Rc     21.65 +/- 0.07  23.4\n\nThis preliminary photometry is based on nearby SDSS stars\n(using Lupton 2005 transformation equations) and not corrected\nfor Galactic extinction.\n",
  "format": "text/plain",
  "version": 2
}