{
  "submittedHow": "web",
  "format": "text/plain",
  "eventId": "GRB 250101A",
  "subject": "GRB 250101A: further SAO RAS optical observations",
  "circularId": 38780,
  "bibcode": "2025GCN.38780....1M",
  "body": "A. S. Moskvitin and O. I. Spiridonova, Yu. V. Sotnikova (SAO RAS), \nA. Ghosh, S. Razzaque (CAPP, University of Johannesburg) and \nA. S. Pozanenko (IKI RAS) report on behalf of the GRB follow-up team.\n\nWe observed the field of Swift GRB 250101A (Page et al., GCN 38752) \nwith the 1-m telescope of SAO RAS, Zeiss-1000 + CCD-photometer\non January 2, 15:20:13--18:06:55 UT (t_mid - T0 = 1.1394 days).\nWe obtained 19 x 300 sec. images in Rc band.\n\nThe OT (Page et al., GCN 38752; Li et al., GCN 38753, GCN 38776; \nMohan et al., GCN 38754; Zhu et al., GCN 38755, GCN 38759; \nBudnev et al., GCN 38756; Wu et al., GCN 38758; Moskvitin et al., \nGCN 38762, GCN 38765; Odeh and Guessoum, GCN 38763; Hu et al., \nGCN 38764; D'Avino and Izzo, GCN 38768; Escudero-Coca et al., \nGCN 38769; Leonini et al., GCN 38771; Zhang et al., GCN 38774; \nSiegel and Page, GCN 38775;  Komesh et al., GCN 38777; Ghosh et al.,\nGCN 38779) is clearly detected in our stacked image \nwith the brightness of R = 21.86 +/- 0.06, calibrated against \nnearby PS1 stars (magnitudes were converted with the Lupton 2005 \nequations) and not corrected for the MW extinction.",
  "createdOn": 1735843307423,
  "submitter": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>"
}