GRB 201029A: Swift-BAT refined analysis
Abstract
Using the data set from T-60 to T+243 sec from the recent telemetry downlink, we report further analysis of BAT GRB 201029A (trigger #1003002) (S. Dichiara et al., GCN Circ. 28803). The BAT ground-calculated position is RA, Dec = 229.607, 44.473 deg which is RA(J2000) = 15h 18m 25.7s Dec(J2000) = +44d 28' 21.7" with an uncertainty of 2.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 96%. The BAT light curve showed a complex structure with a duration of about 150 sec. T90 (15-350 keV) is 120.55 +- 9.54 sec (estimated error including systematics). The time-averaged spectrum from T-2.19 to T+133.11 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.09 +- 0.11. The fluence in the 15-150 keV band is 2.2 +- 0.1 x 10^-06 erg/cm2. The 1-sec peak photon flux measured from T+7.06 sec in the 15-150 keV band is 0.6 +- 0.1 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/1003002/BA/
- Publication:
-
GRB Coordinates Network
- Pub Date:
- October 2020
- Bibcode:
- 2020GCN.28813....1L