| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230222404 |
|
| T0 |
9:41:48.326 UTC |
Fermi_GBM |
| ra |
292.5000° |
Fermi_GBM |
| decl |
-26.0100° |
Fermi_GBM |
| pos_error |
6.91e+00° |
Fermi_GBM |
| T90 |
27.904 s |
Fermi_GBM |
| T90_error |
2.636 s |
Fermi_GBM |
| T90_start |
9:41:48.326 UTC |
Fermi_GBM |
| fluence |
2.54e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
4.43e-08 erg/cm² |
Fermi_GBM |
| T100 |
27.904 s |
|
| GBM_located |
True |
|
| mjd |
59997.40403155093 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230222404 |
| trigger_name |
bn230222404 |
| ra |
292.5000° |
| decl |
-26.0100° |
| pos_error |
6.91e+00° |
| datum |
2023-02-22 |
| t_trigger |
9:41:49.606 UTC |
| T90 |
27.904 s |
| T90_error |
2.636 s |
| T90_start |
9:41:48.326 UTC |
| fluence |
2.54e-06 erg/cm² |
| fluence_error |
4.43e-08 erg/cm² |
| flux_1024 |
3.44e+00 erg/cm²/s |
| flux_1024_error |
2.77e-01 erg/cm²/s |
| flux_1024_time |
-4.48e-01 erg/cm²/s |
| flux_64 |
4.65e+00 erg/cm²/s |
| flux_64_error |
1.23e+00 erg/cm²/s |
| GCN 33366 table |
|---|
| GRB_name |
GRB230222A |
| GCN_number |
33366 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
9:41:49 UTC |
| ra |
292.5000° |
| decl |
-26.0000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 33366
SUBJECT: GRB 230222A: Fermi GBM Final Real-time Localization
DATE: 23/02/22 09:52:14 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 09:41:49 UT on 22 Feb 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230222A (trigger 698751714.60643 / 230222404).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 292.5, Dec = -26.0 (J2000 degrees, equivalent to J2000 19h 30m, -26d 00'), with a statistical uncertainty of 11.5 degrees.
The angle from the Fermi LAT boresight is 77.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230222404/quicklook/glg_skymap_all_bn230222404.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/bn230222404/quicklook/glg_healpix_all_bn230222404.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230222404/quicklook/glg_lc_medres34_bn230222404.gif
|