{
  "createdOn": 1683414788158,
  "subject": "GRB  230506C: TSHAO possible afterglow candidate",
  "bibcode": "2023GCN.33734....1P",
  "circularId": 33734,
  "body": "N. Pankov (HSE), I. Reva (FAI), A. Pozanenko (IKI),  S. Belkin (IKI)  report on behalf of GRB-IKI-FuN:\n\nWe observed the field of  GRB 230506C detected by Swift (Tohuvavohu et al., GCN  33731)  with Zeiss-1000 telescope of Tien Shan Astronomical Observatory stating on May, 06 (UT) 17:24:54 in R-filter.\n\nWithin Swift-BAT error circle (Tohuvavohu et al., GCN  33731)  we  detected uncatalogued object in coordinates of (J2000) 08:57:28.13 +45:07:59.48 with uncertainties of 0.3 arcsec in each coordinate.  The object is absent in SDSS images. A distance of the object from the center of BAT error circle is ~30 arces. Preliminary photometry of a stacked images is following\n\nDate       UT start t-T0    Filter  Exp.    OT     Err.  UL(3 sigma)\n                    (mid, days)     (s)\n\n2023-05-06 17:24:54 0.02914  R      23*120  20.1  0.1  21.5\n \nThe photometry is based on nearby USNO-B1.0 stars.\nWe suggest that the object is a candidate for the afterglow of GRB 230506C.\n\n\n\n",
  "eventId": "GRB 230506C",
  "submitter": "Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>"
}