| Summary table |
|---|
| Variable |
Value |
Source |
| GRB_name_Fermi |
GRB200506404 |
|
| T0 |
9:41:02.837 UTC |
Fermi_GBM |
| ra |
191.6600° |
Fermi_GBM |
| decl |
38.1200° |
Fermi_GBM |
| pos_error |
4.68e+00° |
Fermi_GBM |
| T90 |
204.548 s |
Fermi_GBM |
| T90_error |
3.482 s |
Fermi_GBM |
| T90_start |
9:41:02.837 UTC |
Fermi_GBM |
| fluence |
1.33e-05 erg/cm² |
Fermi_GBM |
| fluence_error |
9.52e-08 erg/cm² |
Fermi_GBM |
| T100 |
204.548 s |
|
| GBM_located |
True |
|
| mjd |
58975.40350505787 |
Fermi_GBM |
| Fermi GBM table |
|---|
| GRB_name_Fermi |
GRB200506404 |
| trigger_name |
bn200506404 |
| ra |
191.6600° |
| decl |
38.1200° |
| pos_error |
4.68e+00° |
| datum |
2020-05-06 |
| t_trigger |
9:41:08.981 UTC |
| T90 |
204.548 s |
| T90_error |
3.482 s |
| T90_start |
9:41:02.837 UTC |
| fluence |
1.33e-05 erg/cm² |
| fluence_error |
9.52e-08 erg/cm² |
| flux_1024 |
5.30e+00 erg/cm²/s |
| flux_1024_error |
3.20e-01 erg/cm²/s |
| flux_1024_time |
1.75e+02 erg/cm²/s |
| flux_64 |
6.62e+00 erg/cm²/s |
| flux_64_error |
1.33e+00 erg/cm²/s |
| GCN 27692 table |
|---|
| GRB_name |
GRB200506C |
| GCN_number |
27692 |
| Detection_method |
Fermi GBM final loc |
| t_trigger |
9:41:08 UTC |
| ra |
190.9000° |
| decl |
40.2000° |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 27692
SUBJECT: GRB 200506C: Fermi GBM Final Real-time Localization
DATE: 20/05/06 09:51:27 GMT
FROM: Fermi GBM Team at MSFC/Fermi-GBM
The Fermi GBM team reports the detection of a likely LONG GRB
At 09:41:08 UT on 6 May 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200506C (trigger 610450873.980628 / 200506404).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 190.9, Dec = 40.2 (J2000 degrees, equivalent to J2000 12h 43m, 40d 12'), with a statistical uncertainty of 3.5 degrees.
The angle from the Fermi LAT boresight is 86.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200506404/quicklook/glg_skymap_all_bn200506404.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/bn200506404/quicklook/glg_healpix_all_bn200506404.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200506404/quicklook/glg_lc_medres34_bn200506404.gif
|
| GCN 27697 table |
|---|
| GRB_name |
GRB200506C |
| GCN_number |
27697 |
| Detection_method |
AstroSat CZTI |
| Circular_text |
TITLE: GCN CIRCULAR
NUMBER: 27697
SUBJECT: GRB 200506C: AstroSat CZTI detection
DATE: 20/05/06 19:41:20 GMT
FROM: Soumya Gupta at IUCAA/ASTROSAT
S. Gupta, V. Sharma, A. Vibhute and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (IUCAA/TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:
Analysis of AstroSat CZTI data showed the detection of a long GRB 200506C, which was also detected by Fermi GBM (GCN #27692).
The source was clearly detected in the 40-200 keV energy range. The light curve shows multiple peaks of emission with the strongest peak at 2020-05-06 09:41:37.093 UT. The measured peak count rate associated with the burst is 307 +/- 25 cts/s above the background in the combined data of four quadrants, with a total of 9495 +/- 228 cts. The local mean background count rate was 547 +/- 1.0 cts/s. Using cumulative rates, we measure a T90 of 205.8 +/- 0.04 s. In preliminary analysis, we find that 756 Compton events are associated with this event.
It was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range.
CZTI GRB detections are reported regularly on the payload site at http://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.
|