| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB240226815 |
|
| T0 |
19:33:07 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
290.5400° |
Fermi_GBM |
| decl |
-40.0900° |
Fermi_GBM |
| pos_error |
6.38e+00° |
Fermi_GBM |
| T90 |
158.723 s |
Fermi_GBM |
| T90_error |
1.557 s |
Fermi_GBM |
| T90_start |
19:33:07.067 UTC |
Fermi_GBM |
| fluence |
3.90e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
2.81e-08 erg/cm² |
Fermi_GBM |
| T100 |
158.79 s |
|
| GBM_located |
True |
|
| mjd |
60366.81466435185 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB240226815 |
| trigger_name |
bn240226815 |
| ra |
290.5400° |
| decl |
-40.0900° |
| pos_error |
6.38e+00° |
| datum |
2024-02-26 |
| t_trigger |
19:33:07.323 UTC |
| T90 |
158.723 s |
| T90_error |
1.557 s |
| T90_start |
19:33:07.067 UTC |
| fluence |
3.90e-06 erg/cm² |
| fluence_error |
2.81e-08 erg/cm² |
| flux_1024 |
2.84e+00 erg/cm²/s |
| flux_1024_error |
1.98e-01 erg/cm²/s |
| flux_1024_time |
1.49e+02 erg/cm²/s |
| flux_64 |
3.79e+00 erg/cm²/s |
| flux_64_error |
1.21e+00 erg/cm²/s |
| GCN 35804 table |
|---|
| GRB_name |
GRB240226A |
| GCN_number |
35804 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
19:33:07 UTC |
| ra |
289.1000° |
| decl |
-43.1000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 35804
SUBJECT: GRB 240226A: Fermi GBM Final Real-time Localization
DATE: 24/02/26 19:43:46 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 19:33:07 UT on 26 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240226A (trigger 730668792.323378 / 240226815).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 289.1, Dec = -43.1 (J2000 degrees, equivalent to J2000 19h 16m, -43d 06'), with a statistical uncertainty of 9.0 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/2024/bn240226815/quicklook/glg_skymap_all_bn240226815.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/bn240226815/quicklook/glg_healpix_all_bn240226815.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240226815/quicklook/glg_lc_medres34_bn240226815.gif
|