| Summary table |
|---|
| Variable |
Value |
Source |
| T0 |
18:37:02 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
12.8000° |
GCN_circulars,Fermi GBM final loc |
| decl |
2.9000° |
GCN_circulars,Fermi GBM final loc |
| GBM_located |
True |
|
| mjd |
59669.775717592594 |
GCN_circulars,Fermi GBM final loc |
| GCN 31808 table |
|---|
| GRB_name |
GRB220331A |
| GCN_number |
31808 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
18:37:02 UTC |
| ra |
12.8000° |
| decl |
2.9000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 31808
SUBJECT: GRB 220331A: Fermi GBM Final Real-time Localization
DATE: 22/03/31 18:47:19 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 18:37:02 UT on 31 Mar 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220331A (trigger 670444627.268388 / 220331776).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 12.8, Dec = 2.9 (J2000 degrees, equivalent to J2000 00h 51m, 2d 53'), with a statistical uncertainty of 4.1 degrees.
The angle from the Fermi LAT boresight is 58.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220331776/quicklook/glg_skymap_all_bn220331776.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220331776/quicklook/glg_healpix_all_bn220331776.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220331776/quicklook/glg_lc_medres34_bn220331776.gif
|