TITLE: GCN CIRCULAR NUMBER: 8677 SUBJECT: IPN localization of short hard GRB 081216 DATE: 08/12/17 16:39:34 GMT FROM: Valentin Pal'shin at Ioffe Inst S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks, T. Cline on behalf of the Konus-Wind team, K. Yamaoka, M. Ohno, Y. Fukazawa, T. Takahashi, M. Tashiro, Y. Terada, T. Murakami, and K. Makishima on behalf of the Suzaku-WAM team, A. von Kienlin, G. Lichti, and A. Rau, and K. Hurley on behalf of the INTEGRAL SPI-ACS GRB team, report: Suzaku-WAM, INTEGRAL-SPI-ACS, and Konus-Wind observed the short-duration hard spectrum GRB 081216 at about 12:44:00 UT (corresponds to the Fermi/GBM trigger 251124240). The burst light curve shows a single pulse with a duration of ~0.2 sec. We have triangulated it to the following, 3-sigma error box: ----------------------------------------------- RA(2000), deg Dec(2000), deg ----------------------------------------------- Center: 130.205 (08h 40m 49s) +11.816 (+11d 48' 57") Corners: 129.100 (08h 36m 24s) + 8.470 (+08d 28' 11") 129.552 (08h 38m 12s) + 8.548 (+08d 32' 53") 131.144 (08h 44m 35s) +15.131 (+15d 07' 52") 130.699 (08h 42m 48s) +15.056 (+15d 03' 20") ----------------------------------------------- The error box area is 2.762 sq. deg. Analysis of the Konus-Wind data yields a burst fluence of ~5x10^-6 erg/cm2 (in the 20 keV - 7 MeV range), and an Epeak of the time-integrated spectrum of ~1.5 MeV. Since the incident angle on the K-W detector was >90 deg, a detailed reliable spectral analysis of the K-W data can not be performed. The results of spectral analysis of the Suzaku-WAM data will be reported later. The K-W light curve of this GRB and IPN triangulation map is available at http://www.ioffe.ru/LEA/GRBs/GRB081216_T45844/