{
  "bibcode": "2024GCN.37953....1M",
  "createdOn": 1730254038689,
  "subject": "GRB 241026A: SAO RAS optical observations",
  "body": "A. S. Moskvitin and O. I. Spiridonova (SAO RAS), report\non behalf of the GRB follow-up team.\n\nWe observed the field of GRB 241026A (The Fermi GBM team, GCN 37894;\nMelandri et al., GCN 37896, Li et al., GCN 37909; Zhang et al.,\nGCN 37921; Zhang, Xiong and Wang GCN 37924; Pal et al., GCN 37929)\nwith the 1-m telescope of SAO RAS, Zeiss-1000/CCD-photometer\nin Rc band on October 28/29 and 29/30 nights.\n\nThe OT (Moskvitin et al., GCNs 37899, 37916; Watson et al., GCN 37900;\nZheng & Filippenko GCN 37903; Shrestha et al., GCN 37913; Mo et al.,\nGCN 37915; Mohan et al., GCN 37918; Izzo et al., GCN 37925;\nWang et al., GCN 37928) is not detected in the October 28/29 data,\nbut marginally detected in the October 29 stacked frame.\nPreliminary results are as follows.\n\ndate   UT_start--UT_end    t_mid-T0  exp, s  R magnitude      R_lim\n28/29  21:30:53--01:10:41  2.02657   500     n/d              21.6\n29     17:42:02--18:36:46  2.81034   2490    22.95 +/- 0.24   23.3\n\nThe frames were calibrated against nearby USNO-B1 stars\n(R2 magnitudes) and not corrected for MW extinction.\n\n",
  "circularId": 37953,
  "submitter": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>",
  "submittedHow": "email-legacy",
  "eventId": "GRB 241026A"
}