| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230618227 |
|
| T0 |
5:26:11 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
257.5100° |
Fermi_GBM |
| decl |
-6.6700° |
Fermi_GBM |
| pos_error |
2.60e+00° |
Fermi_GBM |
| T90 |
48.641 s |
Fermi_GBM |
| T90_error |
0.572 s |
Fermi_GBM |
| T90_start |
5:26:13.466 UTC |
Fermi_GBM |
| fluence |
2.37e-05 erg/cm² |
Fermi_GBM |
| fluence_error |
4.77e-08 erg/cm² |
Fermi_GBM |
| T100 |
51.107 s |
|
| GBM_located |
True |
|
| mjd |
60113.2265162037 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230618227 |
| trigger_name |
bn230618227 |
| ra |
257.5100° |
| decl |
-6.6700° |
| pos_error |
2.60e+00° |
| datum |
2023-06-18 |
| t_trigger |
5:26:11.930 UTC |
| T90 |
48.641 s |
| T90_error |
0.572 s |
| T90_start |
5:26:13.466 UTC |
| fluence |
2.37e-05 erg/cm² |
| fluence_error |
4.77e-08 erg/cm² |
| flux_1024 |
6.33e+00 erg/cm²/s |
| flux_1024_error |
2.96e-01 erg/cm²/s |
| flux_1024_time |
1.08e+01 erg/cm²/s |
| flux_64 |
8.78e+00 erg/cm²/s |
| flux_64_error |
1.29e+00 erg/cm²/s |
| GCN 33991 table |
|---|
| GRB_name |
GRB230618B |
| GCN_number |
33991 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
5:26:11 UTC |
| ra |
257.5000° |
| decl |
-6.7000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 33991
SUBJECT: GRB 230618B: Fermi GBM Final Real-time Localization
DATE: 23/06/18 05:37:37 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 05:26:11 UT on 18 Jun 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230618B (trigger 708758776.929754 / 230618227).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 257.5, Dec = -6.7 (J2000 degrees, equivalent to J2000 17h 10m, -6d 42'), with a statistical uncertainty of 1.0 degrees.
The angle from the Fermi LAT boresight is 90.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230618227/quicklook/glg_skymap_all_bn230618227.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/bn230618227/quicklook/glg_healpix_all_bn230618227.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230618227/quicklook/glg_lc_medres34_bn230618227.gif
|