| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB240125867 |
|
| T0 |
20:48:42.575 UTC |
Fermi_GBM |
| ra |
132.0590° |
GCN_circulars,IPN Triangulation |
| decl |
85.0900° |
GCN_circulars,IPN Triangulation |
| T90 |
0.256 s |
Fermi_GBM |
| T90_error |
0.345 s |
Fermi_GBM |
| T90_start |
20:48:42.575 UTC |
Fermi_GBM |
| fluence |
1.19e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
1.41e-08 erg/cm² |
Fermi_GBM |
| T100 |
0.256 s |
|
| GBM_located |
False |
|
| mjd |
60334.86715943287 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB240125867 |
| trigger_name |
bn240125867 |
| ra |
81.1000° |
| decl |
21.1000° |
| pos_error |
1.08e+01° |
| datum |
2024-01-25 |
| t_trigger |
20:48:42.607 UTC |
| T90 |
0.256 s |
| T90_error |
0.345 s |
| T90_start |
20:48:42.575 UTC |
| fluence |
1.19e-07 erg/cm² |
| fluence_error |
1.41e-08 erg/cm² |
| flux_1024 |
-5.08e-02 erg/cm²/s |
| flux_1024_error |
1.66e-01 erg/cm²/s |
| flux_1024_time |
-3.84e-01 erg/cm²/s |
| flux_64 |
1.25e+00 erg/cm²/s |
| flux_64_error |
1.04e+00 erg/cm²/s |
| GCN 35634 table |
|---|
| GRB_name |
GRB240125B |
| GCN_number |
35634 |
| Detection_method |
Fermi GBM Other |
| ra |
81.1000° |
| decl |
21.1000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 35634
SUBJECT: GRB 240125B: Fermi GBM Final Localization
DATE: 24/01/26 02:54:31 GMT
FROM: Cori Fletcher at USRA
The Fermi GBM team reports the detection of a likely SHORT GRB
"At 20:48:42.61 UT on 25 January 2024, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 240125B (trigger 727908527/240125867).
The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 81.10, Dec = 21.10 (J2000 degrees, equivalent to J2000 5h 24m, +21d 6'),
with a statistical uncertainty of 16.96 degrees.
The angle from the Fermi LAT boresight is 78 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240125867/quicklook/glg_skymap_all_bn240125867.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240125867/quicklook/glg_healpix_all_bn240125867.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240125867/quicklook/glg_lc_medres34_bn240125867.gif" |
| GCN 35654 table |
|---|
| GRB_name |
GRB240125B |
| GCN_number |
35654 |
| Detection_method |
IPN Triangulation |
| t_trigger |
20:48:43 UTC |
| ra |
132.0590° |
| decl |
85.0900° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 35654
SUBJECT: IPN triangulation of GRB 240125B (short)
DATE: 24/01/30 19:43:07 GMT
FROM: Dmitry Svinkin at Ioffe Institute
D. Svinkin, D. Frederiks, A. Ridnaia, A. Lysenko,
on behalf of the IPN,
A. Goldstein, M. S. Briggs, C. Wilson-Hodge,
and E. Burns on behalf of the Fermi GBM team,
and
E. Bozzo and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,
report:
The short-duration GRB 240125B
(Fermi-GBM detection: The Fermi GBM team, GCN 35634)
was detected by Fermi (GBM trigger 727908527), and
INTEGRAL (SPI-ACS) at about 74923 s UT (20:48:43).
We have triangulated it to a GBM-SPI-ACS annulus centered at
RA(2000)=132.059 deg (08h 48m 14s) Dec(2000)=+85.090 deg (+85d 05' 24")
whose radius is 34.188 +/- 6.337 deg (3 sigma).
The annulus combined with the Fermi-GBM final position (GCN 35634;
glg_healpix_all_bn240125867_v00) and the Fermi Earth-occultation information gives 575 sq. deg (3 sigma) localization region.
A triangulation map and HEALPix FITS file are posted at
http://www.ioffe.ru/LEA/GRBs/GRB240125_T74922/IPN/
|