| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB231122531 |
|
| T0 |
12:44:22 UTC |
GCN_circulars,Fermi GBM final loc |
| ra |
108.4500° |
Fermi_GBM |
| decl |
-5.5400° |
Fermi_GBM |
| pos_error |
3.32e+00° |
Fermi_GBM |
| T90 |
58.113 s |
Fermi_GBM |
| T90_error |
1.619 s |
Fermi_GBM |
| T90_start |
12:44:24.220 UTC |
Fermi_GBM |
| fluence |
6.63e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
4.78e-08 erg/cm² |
Fermi_GBM |
| T100 |
60.333 s |
|
| GBM_located |
True |
|
| mjd |
60270.530810185184 |
GCN_circulars,Fermi GBM final loc |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB231122531 |
| trigger_name |
bn231122531 |
| ra |
108.4500° |
| decl |
-5.5400° |
| pos_error |
3.32e+00° |
| datum |
2023-11-22 |
| t_trigger |
12:44:22.684 UTC |
| T90 |
58.113 s |
| T90_error |
1.619 s |
| T90_start |
12:44:24.220 UTC |
| fluence |
6.63e-06 erg/cm² |
| fluence_error |
4.78e-08 erg/cm² |
| flux_1024 |
3.49e+00 erg/cm²/s |
| flux_1024_error |
2.90e-01 erg/cm²/s |
| flux_1024_time |
4.18e+01 erg/cm²/s |
| flux_64 |
6.31e+00 erg/cm²/s |
| flux_64_error |
1.35e+00 erg/cm²/s |
| GCN 35156 table |
|---|
| GRB_name |
GRB231122A |
| GCN_number |
35156 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
12:44:22 UTC |
| ra |
108.4000° |
| decl |
-5.5000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 35156
SUBJECT: GRB 231122A: Fermi GBM Final Real-time Localization
DATE: 23/11/22 12:55:01 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 12:44:22 UT on 22 Nov 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231122A (trigger 722349867.684022 / 231122531).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 108.4, Dec = -5.5 (J2000 degrees, equivalent to J2000 07h 13m, -5d 30'), with a statistical uncertainty of 3.8 degrees.
The angle from the Fermi LAT boresight is 87.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231122531/quicklook/glg_skymap_all_bn231122531.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/bn231122531/quicklook/glg_healpix_all_bn231122531.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231122531/quicklook/glg_lc_medres34_bn231122531.gif
|
| GCN 35158 table |
|---|
| GRB_name |
GRB231122A |
| GCN_number |
35158 |
| Detection_method |
Fermi GBM Other |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 35158
SUBJECT: GRB 231122A: GECAM detection
DATE: 23/11/22 16:40:17 GMT
FROM: Chenwei Wang at IHEP
Chen-Wei Wang, Shao-Lin Xiong report on behalf of the GECAM team:
GECAM-C was triggered in-flight by a long burst, GRB 231122A
at 2023-11-22T12:44:26.350 UTC (denoted as T0),
which was also detected by Fermi/GBM (GCN #35156).
According to the realtime alert data of GECAM-C, this burst mainly consists of many pulses
with a duration of about 50 s. The time-averaged spectrum from T0 to T0+4 s
could be adequately fit by a power law with high energy exponential cutoff function
with a fluence of about 6.8E-6 erg/cm2 in 20-1000 keV.
Using the automatic on-ground localization pipeline with the realtime alert data,
GECAM-C localized this burst to the following position (J2000):
Ra: 106.1 deg
Dec: -7.8 deg
Err: 14.2 deg (1-sigma, statistical only)
GECAM location is consistent with that of Fermi/GBM within the error.
We note that this analysis is based on realtime alert data and thus very preliminary.
Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor
(GECAM) mission originally consists of two micro-satellites (GECAM-A and GECAM-B)
launched in Dec. 2020. As the third member of GECAM constellation,
GECAM-C was launched onboard SATech-01 experimental satellite in July 2022.
GECAM mission is funded by the Chinese Academy of Sciences (CAS). |