Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 27426

Subject
GRB 200318A : AstroSat CZTI detection
Date
2020-03-24T12:17:59Z (4 years ago)
From
Soumya Gupta at IUCAA/ASTROSAT <soumya@iucaa>
S. Gupta, V. Sharma and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:
Analysis of AstroSat CZTI data showed the detection of a long GRB 200318A, which was also detected by Fermi GBM (GCN #27412).�����
The source was clearly detected in the 40-200 keV energy range. The light curve shows a single peak of emission peaking at�����2020-03-18�����22:35:27��� UT. The measured peak count rate associated with the burst is�����197 +/- 21.6�����cts/s above the background in the combined data of four quadrants, with a total of�����990 +/- 48.8�����cts. The local mean background count rate was 566 +/- 3.1 cts/s. Using cumulative rates, we measure a T90 of 10.1 +/- 0.33 s.
It was also detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range.
CZTI GRB detections are reported regularly on the payload site at�����http://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.
Looking for U.S. government information and services? Visit USA.gov