| Summary table |
|---|
| Variable |
Value |
Source |
| T0 |
15:46:27 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
39.6000° |
GCN_circulars,Fermi GBM final loc |
| decl |
55.1000° |
GCN_circulars,Fermi GBM final loc |
| GBM_located |
True |
|
| mjd |
59993.65725694445 |
GCN_circulars,Fermi GBM final loc |
| GCN 33344 table |
|---|
| GRB_name |
GRB230218A |
| GCN_number |
33344 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
15:46:27 UTC |
| ra |
39.6000° |
| decl |
55.1000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 33344
SUBJECT: GRB 230218A: Fermi GBM Final Real-time Localization
DATE: 23/02/18 15:56:53 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 15:46:27 UT on 18 Feb 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230218A (trigger 698427992.71955 / 230218657).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 39.6, Dec = 55.1 (J2000 degrees, equivalent to J2000 02h 38m, 55d 06'), with a statistical uncertainty of 16.0 degrees.
The angle from the Fermi LAT boresight is 10.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230218657/quicklook/glg_skymap_all_bn230218657.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/bn230218657/quicklook/glg_healpix_all_bn230218657.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230218657/quicklook/glg_lc_medres34_bn230218657.gif
|
| GCN 33345 table |
|---|
| GRB_name |
GRB230218A |
| GCN_number |
33345 |
| Detection_method |
Other |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 33345
SUBJECT: GRB 230218A is not a GRB
DATE: 23/02/19 01:34:07 GMT
FROM: Suraj Poolakkil at UAH
S. Poolakkil (UAH) reports on behalf of the Fermi Gamma-ray Burst Monitor
Team:
"The Fermi Gamma-ray Burst Monitor (GBM) trigger 698427992/230218657 at
15:46:27.72 UT
on 18 February 2023, tentatively classified as GRB 230218A (GCN 33344), is
in fact not due
to a GRB. This trigger is likely due to LS V +44 17 / RX J0440.9+4431."
|