| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230808699 |
|
| T0 |
16:46:09.846 UTC |
Fermi_GBM |
| ra |
204.7000° |
Fermi_GBM |
| decl |
-22.2100° |
Fermi_GBM |
| pos_error |
3.10e+00° |
Fermi_GBM |
| T90 |
20.992 s |
Fermi_GBM |
| T90_error |
2.636 s |
Fermi_GBM |
| T90_start |
16:46:09.846 UTC |
Fermi_GBM |
| fluence |
4.27e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
5.10e-08 erg/cm² |
Fermi_GBM |
| T100 |
20.992 s |
|
| GBM_located |
True |
|
| mjd |
60164.698725069444 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230808699 |
| trigger_name |
bn230808699 |
| ra |
204.7000° |
| decl |
-22.2100° |
| pos_error |
3.10e+00° |
| datum |
2023-08-08 |
| t_trigger |
16:46:11.382 UTC |
| T90 |
20.992 s |
| T90_error |
2.636 s |
| T90_start |
16:46:09.846 UTC |
| fluence |
4.27e-06 erg/cm² |
| fluence_error |
5.10e-08 erg/cm² |
| flux_1024 |
3.34e+00 erg/cm²/s |
| flux_1024_error |
2.37e-01 erg/cm²/s |
| flux_1024_time |
6.40e+00 erg/cm²/s |
| flux_64 |
5.08e+00 erg/cm²/s |
| flux_64_error |
1.02e+00 erg/cm²/s |
| GCN 34373 table |
|---|
| GRB_name |
GRB230808B |
| GCN_number |
34373 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
16:46:11 UTC |
| ra |
204.7000° |
| decl |
-22.2000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 34373
SUBJECT: GRB 230808B: Fermi GBM Final Real-time Localization
DATE: 23/08/08 18:50:46 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 16:46:11 UT on 8 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230808B (trigger 713205976.382378 / 230808699).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 204.7, Dec = -22.2 (J2000 degrees, equivalent to J2000 13h 38m, -22d 11'), with a statistical uncertainty of 2.4 degrees.
The angle from the Fermi LAT boresight is 48.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_skymap_all_bn230808699.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_healpix_all_bn230808699.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230808699/quicklook/glg_lc_medres34_bn230808699.gif
|