| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB201228102 |
|
| T0 |
2:27:27.148 UTC |
Fermi_GBM |
| ra |
303.3900° |
Fermi_GBM |
| decl |
32.3100° |
Fermi_GBM |
| pos_error |
8.76e+00° |
Fermi_GBM |
| T90 |
25.344 s |
Fermi_GBM |
| T90_error |
7.973 s |
Fermi_GBM |
| T90_start |
2:27:27.148 UTC |
Fermi_GBM |
| fluence |
5.90e-07 erg/cm² |
Fermi_GBM |
| fluence_error |
2.51e-08 erg/cm² |
Fermi_GBM |
| T100 |
25.344 s |
|
| GBM_located |
True |
|
| mjd |
59211.102397546296 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB201228102 |
| trigger_name |
bn201228102 |
| ra |
303.3900° |
| decl |
32.3100° |
| pos_error |
8.76e+00° |
| datum |
2020-12-28 |
| t_trigger |
2:27:30.732 UTC |
| T90 |
25.344 s |
| T90_error |
7.973 s |
| T90_start |
2:27:27.148 UTC |
| fluence |
5.90e-07 erg/cm² |
| fluence_error |
2.51e-08 erg/cm² |
| flux_1024 |
1.30e+00 erg/cm²/s |
| flux_1024_error |
1.68e-01 erg/cm²/s |
| flux_1024_time |
-3.71e+00 erg/cm²/s |
| flux_64 |
2.97e+00 erg/cm²/s |
| flux_64_error |
1.02e+00 erg/cm²/s |
| GCN 29183 table |
|---|
| GRB_name |
GRB201228A |
| GCN_number |
29183 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
2:27:30 UTC |
| ra |
303.4000° |
| decl |
32.3000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 29183
SUBJECT: GRB 201228A: Fermi GBM Final Real-time Localization
DATE: 20/12/28 02:37:48 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 02:27:30 UT on 28 Dec 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201228A (trigger 630815255.731822 / 201228102).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 303.4, Dec = 32.3 (J2000 degrees, equivalent to J2000 20h 13m, 32d 17'), with a statistical uncertainty of 15.4 degrees.
The angle from the Fermi LAT boresight is 44.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201228102/quicklook/glg_skymap_all_bn201228102.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201228102/quicklook/glg_healpix_all_bn201228102.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201228102/quicklook/glg_lc_medres34_bn201228102.gif
|