{
  "createdOn": 1702725154870,
  "submitter": "Claudio Lopresti <cl3lop@gmail.com>",
  "eventId": "GRB 231215A",
  "bibcode": "2023GCN.35370....1L",
  "body": "Claudio Lopresti (Gruppo Astronomia Digitale - GAD Observatory, La Spezia, Italy) in collaboration with:\nM.G. Dainotti (National Astronomical Observatory of Japan), Y. Niino (Tokyo University, Institute of Astronomy), K. Kalinowski (Aarhus University, Department of Physics and Astronomy), B. De Simone (Universita' degli Studi Di Salerno), Unione Astrofili Italiani (UAI)\nreport:\n\nWe imaged the field of GRB 231215A (trigger=1202522) with the telescope LX200 12” of GAD Observatory, La Spezia, Italy\nMember of:\nUAI/SSV - Unione Astrofili Italiani/sezione stelle variabili, GRB section.\nGAD - Gruppo Astronomia Digitale.\n\nThe observations started 551 min after the GRB trigger, with a Shmidt-Cassegrain telescope D=304 mm with reducer F/D=4.75.\n\nWeather conditions were medium.\nThe observation with a series of 60 sec exposures started at 2023-12-15 18:58:47 UT \n\nWe co-added 230 exposures of 60 sec each.\n\nStart T0+      End T0+       R lim\n551 min        815 min      17,99\n\nWe did not found any optical counterpart in 00:38:58.02 +57:38:47.2 position and in the error box of the XRT  candidate.\nref.: P. D'Avanzo et al. GCN 35343, P.A. Evans et al. GCN 35345\n\nMagnitudes were estimated with the Gaia EDR3 cat. and\nare not corrected for galactic dust extinction.\n\nReference:\nhttps://www.parcodellestelle.com/\n\nThe message may be cited. \n",
  "subject": "GRB 231215A: GAD Observatory, La Spezia, Italy upper limit;",
  "submittedHow": "email-legacy",
  "circularId": 35370
}