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TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2416 SUBJECT: IPN triangulation of GRB031008 (annulus) DATE: 03/10/09 16:41:49 GMT FROM: Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu> K. Hurley and T. Cline, on behalf of the Ulysses GRB team, and A. von Kienlin, G. Lichti, and A. Rau, on behalf of the INTEGRAL SPI-ACS GRB team, report: Ulysses and INTEGRAL (SPI-ACS) observed this burst at 36711 seconds. As observed by Ulysses, it had a duration of approximately 75 seconds, a 25-100 keV fluence of approximately 6.7E-06 erg/cm2, and a peak flux of approximately 7.5E-07 erg/cm2 s over 0.25 seconds. We have triangulated it to a preliminary annulus centered at RA, Decl(2000)= 167.858, 18.462 degrees, whose radius is 27.625 +/- 0.643 degrees (3 sigma). This annulus can be constrained and/or improved, but as the event was not observed by Mars Odyssey, a small error box cannot be derived for it.
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