| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB220827896 |
|
| T0 |
21:30:00.514 UTC |
Fermi_GBM |
| ra |
113.0500° |
Fermi_GBM |
| decl |
-1.1000° |
Fermi_GBM |
| pos_error |
1.12e+01° |
Fermi_GBM |
| T90 |
126.72 s |
Fermi_GBM |
| T90_error |
3.238 s |
Fermi_GBM |
| T90_start |
21:30:00.514 UTC |
Fermi_GBM |
| fluence |
1.64e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
5.88e-08 erg/cm² |
Fermi_GBM |
| T100 |
126.72 s |
|
| GBM_located |
True |
|
| mjd |
59818.895839282406 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB220827896 |
| trigger_name |
bn220827896 |
| ra |
113.0500° |
| decl |
-1.1000° |
| pos_error |
1.12e+01° |
| datum |
2022-08-27 |
| t_trigger |
21:30:03.074 UTC |
| T90 |
126.72 s |
| T90_error |
3.238 s |
| T90_start |
21:30:00.514 UTC |
| fluence |
1.64e-06 erg/cm² |
| fluence_error |
5.88e-08 erg/cm² |
| flux_1024 |
1.99e+00 erg/cm²/s |
| flux_1024_error |
2.41e-01 erg/cm²/s |
| flux_1024_time |
1.28e-01 erg/cm²/s |
| flux_64 |
4.17e+00 erg/cm²/s |
| flux_64_error |
1.28e+00 erg/cm²/s |
| GCN 32497 table |
|---|
| GRB_name |
GRB220827A |
| GCN_number |
32497 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
21:30:03 UTC |
| ra |
113.1000° |
| decl |
-1.1000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 32497
SUBJECT: GRB 220827A: Fermi GBM Final Real-time Localization
DATE: 22/08/27 21:40:19 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 21:30:03 UT on 27 Aug 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220827A (trigger 683328608.07386 / 220827896).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 113.1, Dec = -1.1 (J2000 degrees, equivalent to J2000 07h 32m, -1d 06'), with a statistical uncertainty of 15.1 degrees.
The angle from the Fermi LAT boresight is 99.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220827896/quicklook/glg_skymap_all_bn220827896.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220827896/quicklook/glg_healpix_all_bn220827896.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220827896/quicklook/glg_lc_medres34_bn220827896.gif
|