GRB 241130A: CALET Gamma-Ray Burst Monitor detection

The long GRB 241130A (Fermi GBM Final Real-time Localization: Fermi GBM team, GCN Circ. 38405; Fermi GBM Detection: Sharma et al., GCN Circ. 38421; EIRSAT-1 GMOD Detection: McDermott et al., GCN Circ. 38423; IPN triangulation: Ridnaia et al., GCN Circ. 38424; Konus-Wind detection: Frederiks et al., GCN Circ. 38429) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 23:13:45.911 UTC on 30 November 2024 (https://cgbm.calet.jp/cgbm_trigger/flight/1417043611/index.html). The burst signal was seen by all CGBM detectors. Because of a problem with the ground alert processing script, the GCN notice was not distributed automatically for this event. The burst light curve shows a single pulse that starts at T-0.4 sec, peaks at T+0.1 sec, and ends at T+5.9 sec. The T90 and T50 durations measured by the SGM data are 5.4 +/- 0.8 sec and 2.4 +/- 0.5 sec (40-1000 keV), respectively. The ground-processed light curve is available at https://cgbm.calet.jp/cgbm_trigger/ground/1417043611 The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at Waseda University.