TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2199 SUBJECT: GRB030501 triangulation (correction to GCN 2194) DATE: 03/05/03 15:48:27 GMT FROM: Dmitry Frederiks at Ioffe Institute S. Golenetskii, E. Mazets, V. Pal'shin, and D. Frederiks on behalf of Konus-Wind and Helicon/Coronas-F teams report Data reported in GCN 2194 were affected by error in time delay. Correct Konus-Wind - Helicon annulus is: RA(2000) = 224.210 deg, Decl(2000) = -21.142 deg, Radius = 73.23 +/- 0.70 degrees (3 sigma ). This annulus intersects the IPN annulus (GCN 2186) to form two error boxes, only one of which has the correct ecliptic latitude. Preliminary 3 sigma error box has approximate area of 400 sq. arcmin : RA(2000) Dec(2000) ERROR BOX CENTER: 283.581 23.875 ERROR BOX CORNER 1: 284.167 24.337 ERROR BOX CORNER 2: 284.212 24.275 ERROR BOX CORNER 3: 283.001 23.410 ERROR BOX CORNER 4: 282.956 23.472 -- Dmitry Frederiks [aka Fred] ------------------------------------------------------- Lab for High Energy Astrophysics, Space Research Dept, A.F.Ioffe Phys.-Tech. Institute, St.Petersburg, Russia -------------------------------------------------------