{
  "eventId": "GRB 261026A",
  "circularId": 46062,
  "submittedHow": "email",
  "submitter": "Alexander Moskvitin at SAO RAS <mosk@sao.ru>",
  "subject": "GRB 261026A: SAO RAS optical observations",
  "createdOn": 1793119783058,
  "body": "A. Moskvitin (SAO), V. Goranskij (SAI MSU, SAO), V. Vlasyuk (SAO),\nA. Volnova (IKI), N. Pankov (IKI), A. Pozanenko (IKI),\non behalf of the SAO GRB follow-up team and the IKI-GRB-FuN report.\n\nWe observed the field of GRB 261026A discovered by SVOM (Goto et al.,\nGCN 46030), also detected by EP-FXT (Jiang et al., GCN 46058)\nwith the SAO RAS 1-m Zeiss-1000 and 0.5-m AS-500(2) telescopes\non October 26.\n\nThe OT (Dornic et al., GCN 46033; Zheng et al., GCN 46034; Wu et al.,\nGCN 46035; Li et al., GCN 46046; Morín-González et al., GCN 46048;\nCoyo et al., GCN 46054; also observed in NIR, Mohan et al., GCN 46041;\nShi et al., GCN 46047) is detected only in the Zeiss-1000 stacked frame.\nDetails of the observation are the following.\n\nDate        UT start  t-T0      Exp,    Filter Obj     Err   UL\n Telescope\n                     (mid,days) (n*s)                       (3sigma)\n2026-10-26  20:11:58  0.59342   4*300   Rc     21.5 +/- 0.2  22.1\n Zeiss-1000\n2026-10-26  20:41:16  0.61058   30*30   R      n/d      n/d  20.5    AS-500\n(2)\n\nThis preliminary photometry (Vega) is based on nearby SDSS stars\n(Lupton 2005 transformation) and not corrected for Galactic extinction.\n"
}