| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB190921699 |
|
| T0 |
16:45:49.237 UTC |
Fermi_GBM |
| ra |
338.3800° |
Fermi_GBM |
| decl |
-63.4200° |
Fermi_GBM |
| pos_error |
4.14e+00° |
Fermi_GBM |
| T90 |
22.272 s |
Fermi_GBM |
| T90_error |
1.28 s |
Fermi_GBM |
| T90_start |
16:45:49.237 UTC |
Fermi_GBM |
| fluence |
2.58e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
2.38e-08 erg/cm² |
Fermi_GBM |
| T100 |
22.272 s |
|
| GBM_located |
True |
|
| mjd |
58747.69848653935 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB190921699 |
| trigger_name |
bn190921699 |
| ra |
338.3800° |
| decl |
-63.4200° |
| pos_error |
4.14e+00° |
| datum |
2019-09-21 |
| t_trigger |
16:45:55.125 UTC |
| T90 |
22.272 s |
| T90_error |
1.28 s |
| T90_start |
16:45:49.237 UTC |
| fluence |
2.58e-06 erg/cm² |
| fluence_error |
2.38e-08 erg/cm² |
| flux_1024 |
3.53e+00 erg/cm²/s |
| flux_1024_error |
2.40e-01 erg/cm²/s |
| flux_1024_time |
4.54e+00 erg/cm²/s |
| flux_64 |
4.80e+00 erg/cm²/s |
| flux_64_error |
1.15e+00 erg/cm²/s |
| GCN 25799 table |
|---|
| GRB_name |
GRB190921A |
| GCN_number |
25799 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
16:45:55 UTC |
| ra |
338.4000° |
| decl |
-63.4000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 25799
SUBJECT: GRB 190921A: Fermi GBM Final Real-time Localization
DATE: 19/09/21 16:56:12 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 16:45:55 UT on 21 Sep 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190921A (trigger 590777160.12475 / 190921699).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 338.4, Dec = -63.4 (J2000 degrees, equivalent to J2000 22h 33m, -63d 23'), with a statistical uncertainty of 5.4 degrees.
The angle from the Fermi LAT boresight is 17.0 degrees.
The skymap can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190921699/quicklook/glg_skymap_all_bn190921699.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/bn190921699/quicklook/glg_healpix_all_bn190921699.fit
The GBM light curve can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190921699/quicklook/glg_lc_medres34_bn190921699.gif
|