GRB 200410A: CALET Gamma-Ray Burst Monitor detection
Abstract
The Swift GRB 200410A (Simpson et al., GCN Circ. 27518, Laha et al., GCN Circ. 27578; https://gcn.gsfc.nasa.gov/other/200410A.gcn3) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 02:25:15.105 UTC on 10 April 2020. The burst signal was seen by the SGM detector. No real-time CGBM GCN notice was distributed about this trigger because the real-time communication from the ISS was off (loss of signal). The burst light curve shows a weak pulse which starts at T-3.9 sec, peaks at T-1.0 sec and ends at T+2.4 sec. The T90 and T50 durations measured by the SGM data are 5.5 +- 2.2 sec and 2 +- 2 sec (40-1000 keV), respectively. The ground processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1270520355/ The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at the Waseda University.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- April 2020
- Bibcode:
- 2020GCN.27584....1C