| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB250610966 |
|
| T0 |
23:11:04 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
26.7600° |
Fermi_GBM |
| decl |
59.7400° |
Fermi_GBM |
| pos_error |
3.25e+00° |
Fermi_GBM |
| T90 |
42.753 s |
Fermi_GBM |
| T90_error |
2.111 s |
Fermi_GBM |
| T90_start |
23:11:04.004 UTC |
Fermi_GBM |
| fluence |
6.14e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
5.10e-08 erg/cm² |
Fermi_GBM |
| T100 |
42.757 s |
|
| GBM_located |
True |
|
| mjd |
60836.96601851852 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB250610966 |
| trigger_name |
bn250610966 |
| ra |
26.7600° |
| decl |
59.7400° |
| pos_error |
3.25e+00° |
| datum |
2025-06-10 |
| t_trigger |
23:11:04.772 UTC |
| T90 |
42.753 s |
| T90_error |
2.111 s |
| T90_start |
23:11:04.004 UTC |
| fluence |
6.14e-06 erg/cm² |
| fluence_error |
5.10e-08 erg/cm² |
| flux_1024 |
6.30e+00 erg/cm²/s |
| flux_1024_error |
2.57e-01 erg/cm²/s |
| flux_1024_time |
2.87e+01 erg/cm²/s |
| flux_64 |
7.98e+00 erg/cm²/s |
| flux_64_error |
1.01e+00 erg/cm²/s |
| GCN 40675 table |
|---|
| GRB_name |
GRB250610C |
| GCN_number |
40675 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
23:11:04 UTC |
| ra |
26.8000° |
| decl |
59.7000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 40675
SUBJECT: GRB 250610C: Fermi GBM Final Real-time Localization
DATE: 25/06/10 23:21:44 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 23:11:04 UT on 10 Jun 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250610C (trigger 771289869.772446 / 250610966).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 26.8, Dec = 59.7 (J2000 degrees, equivalent to J2000 01h 47m, 59d 42'), with a statistical uncertainty of 2.5 degrees.
The angle from the Fermi LAT boresight is 64.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250610966/quicklook/glg_skymap_all_bn250610966.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250610966/quicklook/glg_healpix_all_bn250610966.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250610966/quicklook/glg_lc_medres34_bn250610966.gif
|