{
  "bibcode": "2023GCN.33286....1S",
  "body": "R. Strausbaugh (University of Minnesota), A. Cucchiara (NASA) report on\nbehalf of a larger collaboration:\n\nWe observed the GRB 230205A (Ambrosi et al., GCN 33271) field with the\nLCOGT 1-meter Sinistro instrument at the McDonald Observatory, TX, USA\nsite, on February 6, from 11:51 to 12:23 UT (corresponding to 25.20 to\n25.52 hours from the GRB trigger time) with the SDSS r and i filters.\n\nWe performed a series of 3x300s exposures in each band.  We do not detect a\nsource in either band within the XRT enhanced error region (Goad et al.,\nGCN 33275) consistent with other optical upper limits (Hu et al., GCN\n33274; Turpin et al., GCN 33282; Wu et al., GCN 33283).\n\nThe following magnitudes and upper limits are calculated using the\nPanSTARRS catalog as reference:\n\nr > 21.2\ni > 20.8\n\nThese magnitudes are not corrected for galactic extinction.",
  "circularId": 33286,
  "createdOn": 1675700498000,
  "email": "rstrausb@umn.edu",
  "subject": "GRB 230205A: LCOGT Optical Upper Limits",
  "submitter": "Robert Strausbaugh at University of Minnesota  <rstrausb@umn.edu>",
  "eventId": "GRB 230205A"
}