TITLE: GCN CIRCULAR NUMBER: 33020 SUBJECT: Swift GRB221204.45 AKO Upper Limit DATE: 22/12/04 15:53:52 GMT FROM: Mohammad Odeh at Al Khatim Observatory M44 Mohammad Odeh of Al-Khatim Observatory (AKO) operated by the International Astronomical Center, in Abu Dhabi, UAE. We observed the Swift GRB221204.45 detected by Swift (Trigger No 1143281) with our 0.35m robotic telescope. The observation was done on 04 December 2022 from 15:05:55 to 15:18:02 (UT), 4.47 hours after the Swift trigger. We obtained multiple 180-sec exposures in Ic filter. We did not detect any afterglow within XRT localization. This is consistent with the reported non-detections of (Lipunov et al., GCN 33018). The following upper limit was calculated using Atlas catalogue as a reference: ---------------------------------------------------------------------------- - JD (mid), T_mid-T0(hrs), Exposure (sec), Filter, Lim_mag ---------------------------------------------------------------------------- - 2459918.134358, 4.47, 5 x 180 (stacked), Ic, > 17.7 ---------------------------------------------------------------------------- - These magnitudes are not corrected for galactic extinction.