| Summary table |
|---|
| Variable |
Value |
Source |
| T0 |
12:58:19 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
30.2000° |
GCN_circulars,Fermi GBM final loc |
| decl |
47.8000° |
GCN_circulars,Fermi GBM final loc |
| GBM_located |
True |
|
| mjd |
60150.540497685186 |
GCN_circulars,Fermi GBM final loc |
| GCN 34256 table |
|---|
| GRB_name |
GRB230725B |
| GCN_number |
34256 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
12:58:19 UTC |
| ra |
30.2000° |
| decl |
47.8000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 34256
SUBJECT: GRB 230725B: Fermi GBM Final Real-time Localization
DATE: 23/07/25 13:08:51 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 12:58:19 UT on 25 Jul 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230725B (trigger 711982704.317538 / 230725540).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 30.2, Dec = 47.8 (J2000 degrees, equivalent to J2000 02h 00m, 47d 47'), with a statistical uncertainty of 1.0 degrees.
The angle from the Fermi LAT boresight is 2.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230725540/quicklook/glg_skymap_all_bn230725540.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/bn230725540/quicklook/glg_healpix_all_bn230725540.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230725540/quicklook/glg_lc_medres34_bn230725540.gif
|