| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB200509958 |
|
| T0 |
22:58:55.795 UTC |
Fermi_GBM |
| ra |
310.9800° |
Fermi_GBM |
| decl |
-3.7400° |
Fermi_GBM |
| pos_error |
9.65e+00° |
Fermi_GBM |
| T90 |
13.312 s |
Fermi_GBM |
| T90_error |
4.72 s |
Fermi_GBM |
| T90_start |
22:58:55.795 UTC |
Fermi_GBM |
| fluence |
1.25e-06 erg/cm² |
Fermi_GBM |
| fluence_error |
6.07e-08 erg/cm² |
Fermi_GBM |
| T100 |
13.312 s |
|
| GBM_located |
True |
|
| mjd |
58978.95759021991 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB200509958 |
| trigger_name |
bn200509958 |
| ra |
310.9800° |
| decl |
-3.7400° |
| pos_error |
9.65e+00° |
| datum |
2020-05-09 |
| t_trigger |
22:59:04.499 UTC |
| T90 |
13.312 s |
| T90_error |
4.72 s |
| T90_start |
22:58:55.795 UTC |
| fluence |
1.25e-06 erg/cm² |
| fluence_error |
6.07e-08 erg/cm² |
| flux_1024 |
2.64e+00 erg/cm²/s |
| flux_1024_error |
2.99e-01 erg/cm²/s |
| flux_1024_time |
-1.47e+00 erg/cm²/s |
| flux_64 |
5.04e+00 erg/cm²/s |
| flux_64_error |
1.34e+00 erg/cm²/s |
| GCN 27708 table |
|---|
| GRB_name |
GRB200509C |
| GCN_number |
27708 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
22:59:04 UTC |
| ra |
311.0000° |
| decl |
-3.7000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 27708
SUBJECT: GRB 200509C: Fermi GBM Final Real-time Localization
DATE: 20/05/09 23:09:10 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 22:59:04 UT on 9 May 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200509C (trigger 610757949.499186 / 200509958).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 311.0, Dec = -3.7 (J2000 degrees, equivalent to J2000 20h 44m, -3d 42'), with a statistical uncertainty of 9.3 degrees.
The angle from the Fermi LAT boresight is 108.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200509958/quicklook/glg_skymap_all_bn200509958.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/bn200509958/quicklook/glg_healpix_all_bn200509958.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200509958/quicklook/glg_lc_medres34_bn200509958.gif
|