| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230428381 |
|
| T0 |
9:08:56.103 UTC |
Fermi_GBM |
| ra |
121.7500° |
Fermi_GBM |
| decl |
-86.0600° |
Fermi_GBM |
| pos_error |
1.09e+01° |
Fermi_GBM |
| T90 |
4.352 s |
Fermi_GBM |
| T90_error |
1.639 s |
Fermi_GBM |
| T90_start |
9:08:56.103 UTC |
Fermi_GBM |
| fluence |
3.44e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
3.28e-08 erg/cm² |
Fermi_GBM |
| T100 |
4.352 s |
|
| GBM_located |
True |
|
| mjd |
60062.381204895835 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230428381 |
| trigger_name |
bn230428381 |
| ra |
121.7500° |
| decl |
-86.0600° |
| pos_error |
1.09e+01° |
| datum |
2023-04-28 |
| t_trigger |
9:08:58.151 UTC |
| T90 |
4.352 s |
| T90_error |
1.639 s |
| T90_start |
9:08:56.103 UTC |
| fluence |
3.44e-07 erg/cm² |
| fluence_error |
3.28e-08 erg/cm² |
| flux_1024 |
1.75e+00 erg/cm²/s |
| flux_1024_error |
2.27e-01 erg/cm²/s |
| flux_1024_time |
-1.47e+00 erg/cm²/s |
| flux_64 |
3.29e+00 erg/cm²/s |
| flux_64_error |
1.24e+00 erg/cm²/s |
| GCN 33700 table |
|---|
| GRB_name |
GRB230428A |
| GCN_number |
33700 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
9:08:58 UTC |
| ra |
121.8000° |
| decl |
-86.1000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 33700
SUBJECT: GRB 230428A: Fermi GBM Final Real-time Localization
DATE: 23/04/28 09:19:35 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 09:08:58 UT on 28 Apr 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230428A (trigger 704365743.150826 / 230428381).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 121.8, Dec = -86.1 (J2000 degrees, equivalent to J2000 08h 07m, -86d 05'), with a statistical uncertainty of 15.9 degrees.
The angle from the Fermi LAT boresight is 30.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230428381/quicklook/glg_skymap_all_bn230428381.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/bn230428381/quicklook/glg_healpix_all_bn230428381.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230428381/quicklook/glg_lc_medres34_bn230428381.gif
|