| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB230718188 |
|
| T0 |
4:30:00.817 UTC |
Fermi_GBM |
| ra |
185.6000° |
GCN_circulars,Fermi LAT Other |
| decl |
39.9000° |
GCN_circulars,Fermi LAT Other |
| T90 |
24.832 s |
Fermi_GBM |
| T90_error |
5.655 s |
Fermi_GBM |
| T90_start |
4:30:00.817 UTC |
Fermi_GBM |
| fluence |
7.24e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
2.53e-08 erg/cm² |
Fermi_GBM |
| T100 |
24.832 s |
|
| GBM_located |
False |
|
| mjd |
60143.18750945602 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB230718188 |
| trigger_name |
bn230718188 |
| ra |
145.9800° |
| decl |
23.5000° |
| pos_error |
1.78e+01° |
| datum |
2023-07-18 |
| t_trigger |
4:30:02.353 UTC |
| T90 |
24.832 s |
| T90_error |
5.655 s |
| T90_start |
4:30:00.817 UTC |
| fluence |
7.24e-07 erg/cm² |
| fluence_error |
2.53e-08 erg/cm² |
| flux_1024 |
1.64e+00 erg/cm²/s |
| flux_1024_error |
2.12e-01 erg/cm²/s |
| flux_1024_time |
1.34e+00 erg/cm²/s |
| flux_64 |
3.01e+00 erg/cm²/s |
| flux_64_error |
1.11e+00 erg/cm²/s |
| GCN 34225 table |
|---|
| GRB_name |
GRB230718A |
| GCN_number |
34225 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
4:30:02 UTC |
| ra |
146.0000° |
| decl |
23.5000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 34225
SUBJECT: GRB 230718A: Fermi GBM Final Real-time Localization
DATE: 23/07/18 04:40:41 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely SHORT GRB
At 04:30:02 UT on 18 Jul 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230718A (trigger 711347407.352732 / 230718188).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 146.0, Dec = 23.5 (J2000 degrees, equivalent to J2000 09h 43m, 23d 30'), with a statistical uncertainty of 33.5 degrees.
The angle from the Fermi LAT boresight is 79.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230718188/quicklook/glg_skymap_all_bn230718188.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/bn230718188/quicklook/glg_healpix_all_bn230718188.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230718188/quicklook/glg_lc_medres34_bn230718188.gif
|
| GCN 34226 table |
|---|
| GRB_name |
GRB230718A |
| GCN_number |
34226 |
| Detection_method |
Fermi LAT Other |
| ra |
185.6000° |
| decl |
39.9000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 34226
SUBJECT: GRB 230718A: Final Localization Correction
DATE: 23/07/18 16:42:46 GMT
FROM: Oliver J Roberts at USRA/NASA
The Fermi GBM team reports the detection of a likely LONG GRB
"At 04:30:02.35 UT on 18 July 2023, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 230718A (trigger 711347407/230718188).
This trigger was initially classified as a SHORT GRB (GCN 34225) but is in fact a LONG GRB.
The updated on-ground calculated location, using the Fermi GBM trigger data,
is RA = 185.6, Dec = 39.9 degrees, equivalent 12h 22m, +39d 54' (J2000),
with a statistical uncertainty of 15 degrees.
The angle from the Fermi LAT boresight is 43 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230718188/quicklook/glg_skymap_all_bn230718188.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/bn230718188/quicklook/glg_healpix_all_bn230718188.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230718188/quicklook/glg_lc_medres34_bn230718188.gif" |