| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230812395 |
|
| T0 |
9:28:24.250 UTC |
Fermi_GBM |
| ra |
294.2000° |
Fermi_GBM |
| decl |
-32.1600° |
Fermi_GBM |
| pos_error |
4.27e+00° |
Fermi_GBM |
| T90 |
25.6 s |
Fermi_GBM |
| T90_error |
2.111 s |
Fermi_GBM |
| T90_start |
9:28:24.250 UTC |
Fermi_GBM |
| fluence |
2.30e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
2.67e-08 erg/cm² |
Fermi_GBM |
| T100 |
25.6 s |
|
| GBM_located |
True |
|
| mjd |
60168.394725115744 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230812395 |
| trigger_name |
bn230812395 |
| ra |
294.2000° |
| decl |
-32.1600° |
| pos_error |
4.27e+00° |
| datum |
2023-08-12 |
| t_trigger |
9:28:32.442 UTC |
| T90 |
25.6 s |
| T90_error |
2.111 s |
| T90_start |
9:28:24.250 UTC |
| fluence |
2.30e-06 erg/cm² |
| fluence_error |
2.67e-08 erg/cm² |
| flux_1024 |
2.77e+00 erg/cm²/s |
| flux_1024_error |
2.38e-01 erg/cm²/s |
| flux_1024_time |
3.01e+00 erg/cm²/s |
| flux_64 |
5.11e+00 erg/cm²/s |
| flux_64_error |
9.62e-01 erg/cm²/s |
| GCN 34383 table |
|---|
| GRB_name |
GRB230812A |
| GCN_number |
34383 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
9:28:32 UTC |
| ra |
294.2000° |
| decl |
-32.2000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 34383
SUBJECT: GRB 230812A: Fermi GBM Final Real-time Localization
DATE: 23/08/12 09:39:02 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 09:28:32 UT on 12 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230812A (trigger 713525317.441558 / 230812395).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 294.2, Dec = -32.2 (J2000 degrees, equivalent to J2000 19h 36m, -32d 12'), with a statistical uncertainty of 4.5 degrees.
The angle from the Fermi LAT boresight is 71.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230812395/quicklook/glg_skymap_all_bn230812395.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/bn230812395/quicklook/glg_healpix_all_bn230812395.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230812395/quicklook/glg_lc_medres34_bn230812395.gif
|
| GCN 34399 table |
|---|
| GRB_name |
GRB230812A |
| GCN_number |
34399 |
| Detection_method |
Swift-UVOT Det |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 34399
SUBJECT: GRB 230812: Swift/UVOT Detection
DATE: 23/08/13 09:01:24 GMT
FROM: Paul Kuin at MSSL
Paul Kuin (MSSL/UCL) report on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 230812
25418 s after the GBM trigger (Roberts et al., GCN Circ. 34391).
The Fermi LAT also detected the trigger (Scotton et al, GCN Circ. 34392).
An candidate optical counterpart was reported (Zheng & Filippenko, GCN
Circ.
34395; Lipunov et al., GCN Circ 34396; Salgundi et al., GCN Circ. 34397)
near the reported XRT candidate (Kennea, GCN Circ. 34393, Page, GCN Circ.
34394). A source consistent with the XRT position is detected in the UVOT
exposures.
Preliminary detections using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures
are:
Filter T_start(s) T_stop(s) Exp(s) Mag
white 25418 31151 390 20.48 +/- 0.18
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.024 in the direction of the burst
(Schlegel et al. 1998).
|