GRB161020B

This page lists all entries on GRB161020B in GRBweb

Summary Fermi GBM IPN GCN 20091 GCN 20093

Summary table
Variable Value Source
GRB_name_Fermi GRB161020759
T0 18:13:12.938 UTC Fermi_GBM
ra 63.1042° IPN
decl -75.5833° IPN
pos_error 3.40e+00° IPN
T90 24.32 s Fermi_GBM
T90_error 1.557 s Fermi_GBM
T90_start 18:13:16.522 UTC Fermi_GBM
fluence 2.92e-05 erg/cm² Fermi_GBM
fluence_error 5.47e-08 erg/cm² Fermi_GBM
T100 27.904 s
GBM_located False
mjd 57681.75917752315 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB161020759
trigger_name bn161020759
ra 66.0900°
decl -75.6500°
pos_error 2.53e+00°
datum 2016-10-20
t_trigger 18:13:12.938 UTC
T90 24.32 s
T90_error 1.557 s
T90_start 18:13:16.522 UTC
fluence 2.92e-05 erg/cm²
fluence_error 5.47e-08 erg/cm²
flux_1024 2.51e+01 erg/cm²/s
flux_1024_error 3.94e-01 erg/cm²/s
flux_1024_time 6.34e+00 erg/cm²/s
flux_64 2.86e+01 erg/cm²/s
flux_64_error 1.65e+00 erg/cm²/s
IPN table
GRB_name GRB161020B
ra 63.1042°
decl -75.5833°
pos_error 3.40e+00°
GCN 20091 table
GRB_name GRB161020B
GCN_number 20091
Detection_method IPN Triangulation
t_trigger 18:13:17 UTC
ra 63.1050°
decl -75.5800°
Circular_text TITLE: GCN CIRCULAR NUMBER: 20091 SUBJECT: IPN Triangulation of GRB 161020B DATE: 16/10/22 11:22:49 GMT FROM: Anna Kozlova at Ioffe Institute K. Hurley, on behalf of the IPN, I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin, on behalf of the HEND-Odyssey GRB team, A. Kozlova, S. Golenetskii, R. Aptekar, D. Frederiks, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, V. Connaughton, M. S. Briggs, C. Meegan, V. Pelassa, and A. Goldstein, on behalf of the Fermi GBM team, S. Barthelmy, J. Cummings, N. Gehrels, H. Krimm, and D. Palmer, on behalf of the Swift-BAT team, A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, and W. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr, on behalf of the GRS-Odyssey GRB team, report: A long-duration GRB 161020B has been detected by Fermi (GBM), Konus-Wind, INTEGRAL (SPI-ACS), Mars-Odyssey (HEND), and Swift (BAT) at about 65597 s UT (18:13:17). The burst was outside the coded field of view of the BAT. We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 63.105 (04h 12m 25s) -75.580 (-75d 34' 49") Corners: 68.180 (04h 32m 43s) -76.773 (-76d 46' 23") 68.921 (04h 35m 41s) -76.461 (-76d 27' 38") 58.787 (03h 55m 09s) -74.305 (-74d 18' 18") 57.959 (03h 51m 50s) -74.583 (-74d 35' 00") --------------------------------------------- The error box area is 4250 sq. arcmin, and its maximum dimension is 3.4 deg (the minimum one is 21 arcmin). The Sun distance was about 90 deg. This box may be improved. A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB161020_T65597/IPN/ The Konus-Wind time history and spectrum will be given in a forthcoming GCN Circular.
GCN 20093 table
GRB_name GRB161020B
GCN_number 20093
Detection_method Konus-Wind Det
t_trigger 18:13:17.400 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 20093 SUBJECT: Konus-Wind observation of GRB 161020B DATE: 16/10/22 12:28:12 GMT FROM: Anna Kozlova at Ioffe Institute A.Kozlova, S. Golenetskii, R. Aptekar, D. Frederiks, P. Oleynik, M. Ulanov, D. Svinkin, A. Tsvetkova, A. Lysenko, and T. Cline on behalf of the Konus-Wind team, report: The long-duration GRB 161020B (IPN triangulation: Hurley et al., GCN Circ. 20091) triggered Konus-Wind at T0=65597.4 s UT (18:13:17.400). The burst light curve shows a multipeaked structure started at ~T0-9 s with a total duration of ~45.6 s. The emission is seen up to 3 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB161020_T65597/ As observed by Konus-Wind, the burst had a fluence of 5.12(-0.48,+0.54)x10^-5 erg/cm2, and a 64-ms peak flux, measured from T0+3.136 s, of 6.42(-1.29,+1.33)x10^-6 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The time-averaged spectrum of the burst (measured from T0 to T0+37.888 s) is best fit in the 20 keV - 3 MeV range by the GRB (Band) model with the following parameters: the low-energy photon index alpha = -1.03(-0.10,+0.11), the high energy photon index beta = -2.63(-0.59,+0.26), the peak energy Ep = 186(-19,+21) keV (chi2 = 69/64 dof) The spectrum near the maximum count rate (measured from T0+0.256 to T0+5.120 s) is best fit in the 20 keV - 3 MeV range by the GRB (Band) model with the following parameters: the low-energy photon index alpha = -0.51(-0.10,+0.11), the high energy photon index beta = -2.72(-0.32,+0.21), the peak energy Ep = 224(-16,+17) keV (chi2 = 58/61 dof) All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.