{
  "bibcode": "2025GCN.39302....1C",
  "submitter": "Giovanni Calapai at Calapai Astronomical Observatory, Massa S. Giorgio, Messina, Italy <giovannicalapai@tiscali.it>",
  "subject": "GRB 250205A: Calapai Observatory, Massa S. Giorgio (Messina), upper limit",
  "body": "Giovanni Calapai at Calapai Astronomical Observatory, Massa S. Giorgio, (Messina) Italy \nMember of: GRB/UAI Gamma Ray Burst Section of Unione Astrofili Italiani. \n\nReport:\n\nWe imaged the field of GRB 250205A detected by SVOM/ECLAIRs telescope (Saccardi et al. GCN 39154),\nwith the 11 inches Schmidt-Cassegrain (Celestron 11) telescope F/D=6,3. \n\nThe observations were started at 2025-02-05 23:12 UT (approximately 1.79 hours after burst) stacking a set of unfiltered CCD image. The observations were carried out with clear skies and good visibility conditions. \n\nWe co-added 183 exposures of 60 sec each.\n\nStart T0+      End T0+     CR lim\n1.79 hour     5.88 hour     20.2\n\nWe did not found any optical counterpart in the error box of the XRTcandidate.\nKennea et al. GCN 39161\n\nMagnitudes were estimated with the PanSTARRS cat. and \nare not corrected for galactic dust extinction.\n\nOur observations are consistent with other already reported Gompertz et al. (GCN 39156), Schneider et al. (GCN 39157), Gompertz et al. (GCN 39158), Palmerio et al. (GCN 39159), A. de Ugarte Postigo et al. (GCN 39160), Watson et al. (GCN 39162), Breeveld et al. (GCN 39168), Busmann et al. (GCN 39169), Ferro et al. (GCN 39170).\n\nThe message may be cited.",
  "eventId": "GRB 250205A",
  "submittedHow": "web",
  "circularId": 39302,
  "format": "text/plain",
  "createdOn": 1739381887393
}