GRB 200630A: Swift-BAT refined analysis
Abstract
Using the data set from T-61 to T+242 sec from the recent telemetry downlink, we report further analysis of BAT GRB 200630A (trigger #980210) (Page et al., GCN Circ. 28043). The BAT ground-calculated position is RA, Dec = 91.389, -60.779 deg which is RA(J2000) = 06h 05m 33.3s Dec(J2000) = -60d 46' 44.8" with an uncertainty of 1.9 arcmin, (radius, sys+stat, 90% containment). The partial coding was 70%. The mask-weighted light curve shows a single-pulse structure that starts and peaks at ~T0, and ends at~T+17 s. T90 (15-350 keV) is 14.83 +- 3.63 sec (estimated error including systematics). The time-averaged spectrum from T-0.51 to T+16.64 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.64 +- 0.24. The fluence in the 15-150 keV band is 4.7 +- 0.7 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+0.06 sec in the 15-150 keV band is 1.4 +- 0.2 ph/cm2/sec. All the quoted errors are at the 90% confidence level. The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/980210/BA/
- Publication:
-
GRB Coordinates Network
- Pub Date:
- July 2020
- Bibcode:
- 2020GCN.28051....1P