| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230804277 |
|
| T0 |
6:38:31.519 UTC |
Fermi_GBM |
| ra |
199.7600° |
Fermi_GBM |
| decl |
-45.2400° |
Fermi_GBM |
| pos_error |
8.84e+00° |
Fermi_GBM |
| T90 |
39.936 s |
Fermi_GBM |
| T90_error |
6.069 s |
Fermi_GBM |
| T90_start |
6:38:31.519 UTC |
Fermi_GBM |
| fluence |
4.44e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
9.42e-08 erg/cm² |
Fermi_GBM |
| T100 |
39.936 s |
|
| GBM_located |
True |
|
| mjd |
60160.27675369213 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230804277 |
| trigger_name |
bn230804277 |
| ra |
199.7600° |
| decl |
-45.2400° |
| pos_error |
8.84e+00° |
| datum |
2023-08-04 |
| t_trigger |
6:38:55.839 UTC |
| T90 |
39.936 s |
| T90_error |
6.069 s |
| T90_start |
6:38:31.519 UTC |
| fluence |
4.44e-06 erg/cm² |
| fluence_error |
9.42e-08 erg/cm² |
| flux_1024 |
3.61e+00 erg/cm²/s |
| flux_1024_error |
2.57e-01 erg/cm²/s |
| flux_1024_time |
-3.84e-01 erg/cm²/s |
| flux_64 |
6.53e+00 erg/cm²/s |
| flux_64_error |
7.58e+00 erg/cm²/s |
| GCN 34332 table |
|---|
| GRB_name |
GRB230804A |
| GCN_number |
34332 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
6:38:55 UTC |
| ra |
199.8000° |
| decl |
-45.2000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 34332
SUBJECT: GRB 230804A: Fermi GBM Final Real-time Localization
DATE: 23/08/04 06:49:23 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 06:38:55 UT on 4 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230804A (trigger 712823940.838898 / 230804277).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 199.8, Dec = -45.2 (J2000 degrees, equivalent to J2000 13h 19m, -45d 12'), with a statistical uncertainty of 16.6 degrees.
The angle from the Fermi LAT boresight is 71.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230804277/quicklook/glg_skymap_all_bn230804277.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/bn230804277/quicklook/glg_healpix_all_bn230804277.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230804277/quicklook/glg_lc_medres34_bn230804277.gif
|