{
  "format": "text/plain",
  "createdOn": 1764794464626,
  "bibcode": "2025GCN.42977....1B",
  "body": "A. Bochenek, D. A. Perley (LJMU) and A. Y. Q. Ho (Cornell) report:\n\nWe observed the field of GRB 251202A/EP251202a (Fermi GBM team, GCN 42933; Bala et al., GCN 42957; Zhang et al., GCN 42937; Liang et al., GCN 42946) using the IO:O optical camera on the 2m robotic Liverpool Telescope. We obtained two epochs, separated by ~30 minutes, of 6x120s exposures with the SDSS r filter starting at 2025-12-03 03:24: UT, approximately 25.8 hours after trigger.\n\nWe report detections in both epochs, at the position of the afterglow first reported by Li et al., GCN 42934:\n\nMJD (mid)         T_mid-T_0        Filter       Mag. (AB)\n61012.15590        25.89 h           r          19.99 ± 0.05\n61012.17610        26.38 h           r          20.18 ± 0.09\n\nThe seeing was poor throughout the observations, with the second epoch being more affected. The photometry was calibrated using nearby PanSTARRS secondary standards and was not corrected for extinction.",
  "circularId": 42977,
  "submitter": "A. Bochenek at Liverpool John Moores University <a.m.bochenek@2023.ljmu.ac.uk>",
  "eventId": "GRB 251202A",
  "submittedHow": "web",
  "subject": "GRB 251202A / EP251202a: Liverpool Telescope optical follow-up observations"
}