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GRB 191203A

GCN Circular 26325

Subject
GRB 191203A: Fermi GBM Final Real-time Localization
Date
2019-12-03T07:07:43Z (6 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely SHORT GRB

At 06:57:19 UT on 3 Dec 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 191203A (trigger 597049044.076016 / 191203290).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 332.4, Dec = 51.8 (J2000 degrees, equivalent to J2000 22h 09m, 51d 47'), with a statistical uncertainty of 34.2 degrees.

The angle from the Fermi LAT boresight is 15.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191203290/quicklook/glg_skymap_all_bn191203290.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191203290/quicklook/glg_healpix_all_bn191203290.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191203290/quicklook/glg_lc_medres34_bn191203290.gif

GCN Circular 26371

Subject
GRB 191203A: Insight-HXMT/HE detection
Date
2019-12-07T02:00:51Z (6 years ago)
From
YaoGuang Zheng at IHEP <zhengyg@ihep.ac.cn>
Y. G. Zheng, C. Cai, Q. Luo, S. Xiao, Q. B. Yi, 
Y. Huang, C. K. Li, G. Li, X. B. Li, J. Y. Liao, S. L. Xiong,
C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, A. M. Zhang, 
Y. F. Zhang, X. F. Lu, C. L. Zou (IHEP), Y. J. Jin, 
Z. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song, 
M. Wu, Y. P. Xu, S. N. Zhang (IHEP), 
report on behalf of the Insight-HXMT team:

At 2019-12-03T06:57:19.08 (T0), Insight-HXMT/HE detected 
GRB 191203A (trigger ID: HEB191203289) in a routine search of the data, 
which was also triggered by Fermi/GBM (GCN #26325).

The Insight-HXMT/HE light curve mainly consists of a single  
pulse with a duration (T90) of 0.27 s measured from T0-0.30 s. 
The 1-ms peak rate, measured from T0-0.10 s, is 2238 cnts/sec. 
The total counts from this burst is 339 counts. 
URL_LC: http://www.hxmt.org/images/GRB/HEB191203289_lc.jpg 

All measurements above are made with the CsI detectors operating in the 
regular mode with the energy range of about 80-800 keV (deposited energy). 
Only gamma-rays with energy greater than about 200 keV can penetrate 
the spacecraft and leave signals in the CsI detectors installed inside 
of the telescope. 

Insight-HXMT is the first Chinese space X-ray telescope, which was 
funded jointly by the China National Space Administration (CNSA) and 
the Chinese Academy of Sciences (CAS). 
More information about it could be found at: 
http://www.hxmt.org.

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