| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB190531312 |
|
| T0 |
7:29:11 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
21.1200° |
Fermi_GBM |
| decl |
16.3500° |
Fermi_GBM |
| pos_error |
3.10e+00° |
Fermi_GBM |
| T90 |
57.089 s |
Fermi_GBM |
| T90_error |
0.923 s |
Fermi_GBM |
| T90_start |
7:29:11.569 UTC |
Fermi_GBM |
| fluence |
6.19e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
4.37e-08 erg/cm² |
Fermi_GBM |
| T100 |
57.658 s |
|
| GBM_located |
True |
|
| mjd |
58634.31193287037 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB190531312 |
| trigger_name |
bn190531312 |
| ra |
21.1200° |
| decl |
16.3500° |
| pos_error |
3.10e+00° |
| datum |
2019-05-31 |
| t_trigger |
7:29:11.825 UTC |
| T90 |
57.089 s |
| T90_error |
0.923 s |
| T90_start |
7:29:11.569 UTC |
| fluence |
6.19e-06 erg/cm² |
| fluence_error |
4.37e-08 erg/cm² |
| flux_1024 |
4.82e+00 erg/cm²/s |
| flux_1024_error |
2.25e-01 erg/cm²/s |
| flux_1024_time |
1.07e+01 erg/cm²/s |
| flux_64 |
6.15e+00 erg/cm²/s |
| flux_64_error |
1.01e+00 erg/cm²/s |
| GCN 24691 table |
|---|
| GRB_name |
GRB190531A |
| GCN_number |
24691 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
7:29:11 UTC |
| ra |
21.1000° |
| decl |
16.4000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 24691
SUBJECT: GRB 190531A: Fermi GBM Final Real-time Localization
DATE: 19/05/31 07:40:41 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 07:29:11 UT on 31 May 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190531A (trigger 580980556.825258 / 190531312).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 21.1, Dec = 16.4 (J2000 degrees, equivalent to J2000 01h 24m, 16d 23'), with a statistical uncertainty of 2.2 degrees.
The angle from the Fermi LAT boresight is 57.0 degrees.
The skymap can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190531312/quicklook/glg_skymap_all_bn190531312.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190531312/quicklook/glg_healpix_all_bn190531312.fit
The GBM light curve can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190531312/quicklook/glg_lc_medres34_bn190531312.gif
|
| GCN 24696 table |
|---|
| GRB_name |
GRB190531A |
| GCN_number |
24696 |
| Detection_method |
Other |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 24696
SUBJECT: Fermi Trigger 581026217 / GRB 190531840 / GRB190531A: BALROG localization
DATE: 19/05/31 20:44:35 GMT
FROM: Jochen Greiner at MPE,Garching
F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
581026217 at 20:10:12 on 31 May 2019 were automatically fitted for spectrum
and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427;
Berlato et al. 2019, ApJ 873, 60).
The best-fit position (1 sigma statistical errors) is:
RA(2000.0) = 27.9+/-0.8 deg
Decl.(2000.0) = -40.8+/-0.6 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB190531840/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB190531840/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB190531840/json
|