| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB211224980 |
|
| T0 |
23:31:39.997 UTC |
Fermi_GBM |
| ra |
220.8900° |
Fermi_GBM |
| decl |
-41.5700° |
Fermi_GBM |
| pos_error |
7.76e+00° |
Fermi_GBM |
| T90 |
0.192 s |
Fermi_GBM |
| T90_error |
0.643 s |
Fermi_GBM |
| T90_start |
23:31:39.997 UTC |
Fermi_GBM |
| fluence |
2.27e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
1.32e-08 erg/cm² |
Fermi_GBM |
| T100 |
0.192 s |
|
| GBM_located |
True |
|
| mjd |
59572.98032403935 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB211224980 |
| trigger_name |
bn211224980 |
| ra |
220.8900° |
| decl |
-41.5700° |
| pos_error |
7.76e+00° |
| datum |
2021-12-24 |
| t_trigger |
23:31:40.061 UTC |
| T90 |
0.192 s |
| T90_error |
0.643 s |
| T90_start |
23:31:39.997 UTC |
| fluence |
2.27e-07 erg/cm² |
| fluence_error |
1.32e-08 erg/cm² |
| flux_1024 |
1.46e+00 erg/cm²/s |
| flux_1024_error |
1.84e-01 erg/cm²/s |
| flux_1024_time |
-6.40e-02 erg/cm²/s |
| flux_64 |
8.16e+00 erg/cm²/s |
| flux_64_error |
1.08e+00 erg/cm²/s |
| GCN 31301 table |
|---|
| GRB_name |
GRB211224A |
| GCN_number |
31301 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
23:31:40 UTC |
| ra |
220.9000° |
| decl |
-41.6000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 31301
SUBJECT: GRB 211224A: Fermi GBM Final Real-time Localization
DATE: 21/12/24 23:43:05 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely SHORT GRB
At 23:31:40 UT on 24 Dec 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 211224A (trigger 662081505.061428 / 211224980).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 220.9, Dec = -41.6 (J2000 degrees, equivalent to J2000 14h 43m, -41d 36'), with a statistical uncertainty of 11.9 degrees.
The angle from the Fermi LAT boresight is 32.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211224980/quicklook/glg_skymap_all_bn211224980.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/bn211224980/quicklook/glg_healpix_all_bn211224980.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211224980/quicklook/glg_lc_medres34_bn211224980.gif
|