{
  "circularId": 34406,
  "createdOn": 1691965202962,
  "eventId": "GRB 230812B",
  "bibcode": "2023GCN.34406....1M",
  "submitter": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>",
  "body": "A. S. Moskvitin and O. I. Spiridonova (SAO RAS), report on behalf of\nthe GRB follow-up team.\n\nWe observed the field of GRB 230812B (Lesage et al., GCN 34387;\nScotton et al., GCN 34392; Page, GCN 34394; Zheng & Filippenko, GCN\n34395; Lipunov et al., GCN 34396; Salgundi et al., GCN 34397; Ackley\net al., GCN 34398; Xiong et al., GCN 34401; Casentini et al., GCN\n34002; Frederiks et al., GCN 34403; Mao et al., GCN 34404; Odeh et\nal., GCN 34405) with the 1-m telescope of SAO RAS Zeiss-1000 equipped\nwith the CCD photometer. We obtained 3 x 300 sec. images in Rc band on\nAugust 13, 20:14:15--20:31:46 UT under mediocre weather conditions.\n\nThe OT is clearly detected in our stacked frame with the brightness of\nR = 20.45 +/- 0.07 (t_mid - t0 = 1.0589 days).\n\nThis preliminary photometry is based on the nearby SDSS stars;\nmagnitudes are converted using Lupton (2005) equations.\n\n",
  "subject": "GRB 230812B: SAO RAS optical observations",
  "submittedHow": "email-legacy"
}