{
  "bibcode": "2025GCN.39107....1M",
  "createdOn": 1738326558903,
  "submittedHow": "web",
  "eventId": "GRB 250129A",
  "circularId": 39107,
  "submitter": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>",
  "subject": "GRB 250129A: SAO RAS optical observations",
  "format": "text/plain",
  "body": "A. Moskvitin, O. Spiridonova, Yu. Sotnikova (SAO RAS), \nA. Ghosh, S. Razzaque (CAPP, University of Johannesburg)\n\nWe observed the field of GRB 250129A (Beardmore et al., GCN 39066)\nwith the SAO RAS 1-m telescope Zeiss-1000 on January 30, 23:46:43 --\nJanuary 31, 00:19:22 UT (t_mid - T0 = 43.298 hours = 1.8041 days). \nWe obtained 5 x 300 sec. images in Rc band.\n\nThe OT (Francile et al., GCN 39065; GCN 39075, Beardmore et al., \nGCN 39066, Schneider et al., GCN 39071, Belkin et al., GCN 39072; \nIzzo et al., GCN 39073; Izzo and Malesani, GCN 39074; Ghosh et al., \nGCN 39077; Schneider et al., GCN 39078; Brivio et al., GCN 39079;\nSiegel and Beardmore, GCN 39085; Zheng and Filippenko, GCN 39090; \nGCN 39102; Schlekat et al., GCN 39091; Antier et al., GCN 39096; \nOdeh et al., GCN 39097; Ferro et al., GCN 39098; Bochenek and Perley, \nGCN 39099; Malesani et al., GCN 39100; Romanov, GCN 39101; \nWatson et al., GCN 39104; Vinko et al., GCN 39105; Akl et al., \nGCN 39106) is clearly detected in the stacked frame \nwith the brightness of R = 19.65 +/- 0.13 (calibrated against R2 \nmagnitudes of nearby UNSO-B1 stars and not corrected for the MW\nextinction)."
}