TITLE: GCN CIRCULAR NUMBER: 1325 SUBJECT: IPN localization of GRB020405 DATE: 02/04/05 17:18:58 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and T. Cline, on behalf of the Ulysses GRB team, F. Frontera, C. Guidorzi, and E. Montanari, on behalf of the BeppoSAX GRBM team, I. Mitrofanov, D. Anfimov and M. Litvak on behalf on HEND/Odyssey GRB team, and W. Boynton, C. Fellows, K. Harshman, and C. Shinohara, on behalf of the GRS/Odyssey GRB team, report: Ulysses, Mars Odyssey - HEND, and BeppoSAX observed this GRB at 02486 s. As observed by Ulysses, it had a duration of ~40 seconds, a 25-100 keV fluence of ~3x10^-5 erg/cm2, and a peak flux of ~10^-6 erg/cm2 s over 0.5 s. We have triangulated it to a preliminary, 3 sigma error box with approximate area 75 square arcminutes whose coordinates are: ERROR BOX CENTER: 209.543 -31.388 ERROR BOX CORNER: 209.216 -31.393 ERROR BOX CORNER: 209.594 -31.350 ERROR BOX CORNER: 209.491 -31.425 ERROR BOX CORNER: 209.873 -31.381 This error box can be improved. With this burst, we announce the resumption of IPN activities with the Mars Odyssey spacecraft. We had intended to announce this with a GCN message prior to the localization of our first burst; that announcement will now be sent sometime next week. [GCN OPS NOTE (06apr02): The "name" of the GRB in the Subject-line was changed from 050402 to 020405 as per the normal naming convention.]