| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230617926 |
|
| T0 |
22:13:31 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
139.4500° |
Fermi_GBM |
| decl |
-70.5300° |
Fermi_GBM |
| pos_error |
9.28e+00° |
Fermi_GBM |
| T90 |
2.56 s |
Fermi_GBM |
| T90_error |
1.494 s |
Fermi_GBM |
| T90_start |
22:13:31.549 UTC |
Fermi_GBM |
| fluence |
1.42e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
1.61e-08 erg/cm² |
Fermi_GBM |
| T100 |
3.109 s |
|
| GBM_located |
True |
|
| mjd |
60112.92605324074 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230617926 |
| trigger_name |
bn230617926 |
| ra |
139.4500° |
| decl |
-70.5300° |
| pos_error |
9.28e+00° |
| datum |
2023-06-17 |
| t_trigger |
22:13:31.997 UTC |
| T90 |
2.56 s |
| T90_error |
1.494 s |
| T90_start |
22:13:31.549 UTC |
| fluence |
1.42e-07 erg/cm² |
| fluence_error |
1.61e-08 erg/cm² |
| flux_1024 |
1.03e+00 erg/cm²/s |
| flux_1024_error |
2.23e-01 erg/cm²/s |
| flux_1024_time |
-5.12e-01 erg/cm²/s |
| flux_64 |
3.63e+00 erg/cm²/s |
| flux_64_error |
1.06e+00 erg/cm²/s |
| GCN 33987 table |
|---|
| GRB_name |
GRB230617A |
| GCN_number |
33987 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
22:13:31 UTC |
| ra |
139.4000° |
| decl |
-70.5000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 33987
SUBJECT: GRB 230617A: Fermi GBM Final Real-time Localization
DATE: 23/06/17 22:23:59 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely SHORT GRB
At 22:13:31 UT on 17 Jun 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230617A (trigger 708732816.996698 / 230617926).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 139.4, Dec = -70.5 (J2000 degrees, equivalent to J2000 09h 17m, -70d 30'), with a statistical uncertainty of 25.5 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/bn230617926/quicklook/glg_skymap_all_bn230617926.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/bn230617926/quicklook/glg_healpix_all_bn230617926.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230617926/quicklook/glg_lc_medres34_bn230617926.gif
|