| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB240817057 |
|
| T0 |
1:22:06.917 UTC |
Fermi_GBM |
| ra |
227.0200° |
Fermi_GBM |
| decl |
-45.8100° |
Fermi_GBM |
| pos_error |
5.18e+00° |
Fermi_GBM |
| T90 |
1.728 s |
Fermi_GBM |
| T90_error |
1.262 s |
Fermi_GBM |
| T90_start |
1:22:06.917 UTC |
Fermi_GBM |
| fluence |
6.12e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
1.12e-08 erg/cm² |
Fermi_GBM |
| T100 |
1.728 s |
|
| GBM_located |
True |
|
| mjd |
60539.05702450231 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB240817057 |
| trigger_name |
bn240817057 |
| ra |
227.0200° |
| decl |
-45.8100° |
| pos_error |
5.18e+00° |
| datum |
2024-08-17 |
| t_trigger |
1:22:07.877 UTC |
| T90 |
1.728 s |
| T90_error |
1.262 s |
| T90_start |
1:22:06.917 UTC |
| fluence |
6.12e-07 erg/cm² |
| fluence_error |
1.12e-08 erg/cm² |
| flux_1024 |
1.48e+00 erg/cm²/s |
| flux_1024_error |
2.02e-01 erg/cm²/s |
| flux_1024_time |
-3.84e-01 erg/cm²/s |
| flux_64 |
8.61e+00 erg/cm²/s |
| flux_64_error |
9.89e-01 erg/cm²/s |
| GCN 37197 table |
|---|
| GRB_name |
GRB240817A |
| GCN_number |
37197 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
1:22:07 UTC |
| ra |
227.0000° |
| decl |
-45.8000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 37197
SUBJECT: GRB 240817A: Fermi GBM Final Real-time Localization
DATE: 24/08/17 01:32:40 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely SHORT GRB
At 01:22:07 UT on 17 Aug 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240817A (trigger 745550532.876778 / 240817057).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 227.0, Dec = -45.8 (J2000 degrees, equivalent to J2000 15h 07m, -45d 47'), with a statistical uncertainty of 7.8 degrees.
The angle from the Fermi LAT boresight is 60.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240817057/quicklook/glg_skymap_all_bn240817057.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240817057/quicklook/glg_healpix_all_bn240817057.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240817057/quicklook/glg_lc_medres34_bn240817057.gif
|