| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB210919653 |
|
| T0 |
15:39:51 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
215.1600° |
Fermi_GBM |
| decl |
-77.1000° |
Fermi_GBM |
| pos_error |
7.50e+00° |
Fermi_GBM |
| T90 |
1.6 s |
Fermi_GBM |
| T90_error |
1.243 s |
Fermi_GBM |
| T90_start |
15:39:51.893 UTC |
Fermi_GBM |
| fluence |
3.31e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
1.43e-08 erg/cm² |
Fermi_GBM |
| T100 |
2.493 s |
|
| GBM_located |
True |
|
| mjd |
59476.65267361111 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB210919653 |
| trigger_name |
bn210919653 |
| ra |
215.1600° |
| decl |
-77.1000° |
| pos_error |
7.50e+00° |
| datum |
2021-09-19 |
| t_trigger |
15:39:51.957 UTC |
| T90 |
1.6 s |
| T90_error |
1.243 s |
| T90_start |
15:39:51.893 UTC |
| fluence |
3.31e-07 erg/cm² |
| fluence_error |
1.43e-08 erg/cm² |
| flux_1024 |
2.34e+00 erg/cm²/s |
| flux_1024_error |
1.81e-01 erg/cm²/s |
| flux_1024_time |
-1.28e-01 erg/cm²/s |
| flux_64 |
3.98e+00 erg/cm²/s |
| flux_64_error |
8.78e-01 erg/cm²/s |
| GCN 30853 table |
|---|
| GRB_name |
GRB210919B |
| GCN_number |
30853 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
15:39:51 UTC |
| ra |
215.2000° |
| decl |
-77.1000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 30853
SUBJECT: GRB 210919B: Fermi GBM Final Real-time Localization
DATE: 21/09/19 15:51:07 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely SHORT GRB
At 15:39:51 UT on 19 Sep 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 210919B (trigger 653758796.95736 / 210919653).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 215.2, Dec = -77.1 (J2000 degrees, equivalent to J2000 14h 20m, -77d 05'), with a statistical uncertainty of 9.2 degrees.
The angle from the Fermi LAT boresight is 53.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210919653/quicklook/glg_skymap_all_bn210919653.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210919653/quicklook/glg_healpix_all_bn210919653.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210919653/quicklook/glg_lc_medres34_bn210919653.gif
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