GRB120617A

This page lists all entries on GRB120617A in GRBweb

Summary GCN 13370 GCN 13371

Summary table
Variable Value Source
T0 15:02:47.025 UTC GCN_circulars,Konus-Wind Det
ra 22.3090° GCN_circulars,IPN Triangulation
decl 33.8040° GCN_circulars,IPN Triangulation
GBM_located False
mjd 56095.62693315972 GCN_circulars,Konus-Wind Det
GCN 13370 table
GRB_name GRB120617A
GCN_number 13370
Detection_method IPN Triangulation
t_trigger 15:02:51 UTC
ra 22.3090°
decl 33.8040°
Circular_text TITLE: GCN CIRCULAR NUMBER: 13370 SUBJECT: IPN Triangulation of GRB 120617A (short/intense) DATE: 12/06/18 20:28:42 GMT FROM: Dmitry Svinkin at Ioffe Institute S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, K. Hurley, and J. Goldsten, on behalf of the MESSENGER GRNS GRB team, and A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, report: The bright, short-duration GRB 120617A has been observed by INTEGRAL (SPI-ACS), Konus-Wind, and MESSENGER (GRNS), so far, at about 54171 s UT (15:02:51). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 22.309 (01h 29m 14s) +33.804 (+33d 48' 14") Corners: 22.485 (01h 29m 57s) +33.057 (+33d 03' 25") 22.035 (01h 28m 08s) +34.123 (+34d 07' 23") 22.140 (01h 28m 34s) +34.534 (+34d 32' 02") 22.583 (01h 30m 20s) +33.482 (+33d 28' 55") --------------------------------------------- The error box area is 881 sq. arcmin, and its maximum dimension is 90 arcmin (the minimum one is 25 arcmin). This box may be improved. The time history and spectrum will be given in a forthcoming GCN Circular.
GCN 13371 table
GRB_name GRB120617A
GCN_number 13371
Detection_method Konus-Wind Det
t_trigger 15:02:47.025 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 13371 SUBJECT: Konus-Wind observation of GRB 120617A DATE: 12/06/19 12:24:29 GMT FROM: Dmitry Frederiks at Ioffe Institute S. Golenetskii, R.Aptekar, D. Frederiks, E. Mazets, V. Pal'shin, P. Oleynik, M. Ulanov, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, report: The short-duration intense GRB 120617A (IPN localization: Golenetskii at al., GCN 13370) triggered Konus-Wind at T0=54167.025s UT (15:02:47.025) The light curve shows two pulses, a total duration of the burst is ~0.5 s. The emission is seen up to ~4 MeV. A spectral lag between G2(80-300 keV) and G1(20-80 keV) instrument's light curves is estimated to 28 +/- 4 ms (1 sigma). The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB120617_T54167/ As observed by Konus-Wind the burst had a fluence of 2.1(-0.2,+0.2)x10-6 erg/cm2, and a 16-ms peak flux, measured from T0+0.256 s, of 1.5(-0.3,+0.4)x10-5 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The spectrum of the burst (measured from T0 to T0+0.256 s) is well fit in the 20 keV - 10 MeV range by a power law with exponential cutoff model, for which alpha = -0.95 (-0.4, +0.5), and Ep = 180(-40, +70) keV, chi2 = 12.6/22 dof. All the quoted results are preliminary. All the quoted errors are at the 90% confidence level.