| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230511548 |
|
| T0 |
13:08:30 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
222.9400° |
Fermi_GBM |
| decl |
-7.6700° |
Fermi_GBM |
| pos_error |
2.53e+00° |
Fermi_GBM |
| T90 |
63.489 s |
Fermi_GBM |
| T90_error |
0.572 s |
Fermi_GBM |
| T90_start |
13:08:36.863 UTC |
Fermi_GBM |
| fluence |
1.41e-04 erg/cm² |
Fermi_GBM |
| fluence_error |
3.80e-08 erg/cm² |
Fermi_GBM |
| T100 |
70.352 s |
|
| GBM_located |
True |
|
| mjd |
60075.54756944445 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230511548 |
| trigger_name |
bn230511548 |
| ra |
222.9400° |
| decl |
-7.6700° |
| pos_error |
2.53e+00° |
| datum |
2023-05-11 |
| t_trigger |
13:08:30.719 UTC |
| T90 |
63.489 s |
| T90_error |
0.572 s |
| T90_start |
13:08:36.863 UTC |
| fluence |
1.41e-04 erg/cm² |
| fluence_error |
3.80e-08 erg/cm² |
| flux_1024 |
2.63e+01 erg/cm²/s |
| flux_1024_error |
4.18e-01 erg/cm²/s |
| flux_1024_time |
5.54e+01 erg/cm²/s |
| flux_64 |
3.63e+01 erg/cm²/s |
| flux_64_error |
1.76e+00 erg/cm²/s |
| GCN 33769 table |
|---|
| GRB_name |
GRB230511B |
| GCN_number |
33769 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
13:08:30 UTC |
| ra |
222.9000° |
| decl |
-7.7000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 33769
SUBJECT: GRB 230511B: Fermi GBM Final Real-time Localization
DATE: 23/05/11 13:19:01 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 13:08:30 UT on 11 May 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230511B (trigger 705503315.71883 / 230511548).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 222.9, Dec = -7.7 (J2000 degrees, equivalent to J2000 14h 51m, -7d 42'), with a statistical uncertainty of 1.2 degrees.
The angle from the Fermi LAT boresight is 75.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230511548/quicklook/glg_skymap_all_bn230511548.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/bn230511548/quicklook/glg_healpix_all_bn230511548.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230511548/quicklook/glg_lc_medres34_bn230511548.gif
|