{
  "bibcode": "2023GCN.34428....1M",
  "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; Moskvitin & Spiridonova GCN 34406; Leonini et al. GCN\n34408; de Ugarte Postigo et al. GCN 34409; de Ugarte Postigo et al.\nGCN 34410; Belkin et al. GCN 34412; Ruocco et al. GCN 34413; Frederiks\net al. GCN 34414; Ruocco et al. GCN 34415; Shrestha et al. GCN 34416;\nQuadri et al. GCN 34417; Adami et al. GCN 34418; Moretti et al. GCN\n34419; Kumar et al. GCN 34420; Belkin et al. GCN 34421 & GCN 34423;\nPyshna et al., GCN 34425) with the 1-m telescope of SAO RAS Zeiss-1000\nequipped with the CCD photometer. We obtained 5 x 300 sec. images in\nRc band on August 14, 19:51:04--20:21:03 UT\n\nThe OT is clearly detected in our stacked frame with the brightness of\nR = 21.20 +/- 0.09 (t_mid - t0 = 2.0471 days).\n\nThis preliminary photometry is based on the nearby SDSS stars;\nmagnitudes are converted using Lupton (2005) equations.\n\n",
  "submittedHow": "email-legacy",
  "eventId": "GRB 230812B",
  "circularId": 34428,
  "submitter": "Moskvitin Alexander at SAO RAS <mosk@sao.ru>",
  "createdOn": 1692057753219,
  "subject": "GRB 230812B: further SAO RAS optical observations"
}