{"paper":{"title":"HETE-2 Localization and Observations of the Short, Hard Gamma-Ray Burst GRB020531","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Kozyrev, A. Levine, A. Sanin, A. Yoshida, C. Fellows, C. Graziani, C. Shinohara, D. Anfimov, D. Q. Lamb, E. E. Fenimore, E. Morgan, F. Martel, G. Crew, G. Monnelly, G. Pizzichini, G. Prigozhin, G. R. Ricker, I. Mitrofanov, J. Braga, J. Doty, J.-F. Olive, J. G. Jernigan, J.-L. Atteia, J.-P. Dezalay, J. Villasenor, K. Harshman, K. Hurley, K. Takagishi, K. Torii, M. Boer, M. Galassi, M. Litvak, M. Matsuoka, M. Yamauchi, N. Butler, N. Kawai, R. Manchanda, R. Starr, R. Vanderspek, S. E. Woosley, T. Cline, T. Q. Donaghy, T. Sakamoto, T. Tamagawa, T. Tavenner, W. Boynton, Y. Shirasaki","submitted_at":"2002-06-10T19:29:16Z","abstract_excerpt":"The {\\it HETE-2} (hereafter \\HETE) French Gamma Telescope (FREGATE) and the Wide-field X-ray Monitor (WXM) instruments detected a short ($t_{50} = 360$ msec in the FREGATE 85-300 keV energy band), hard gamma-ray burst (GRB) that occurred at 1578.72 SOD (00:26:18.72 UT) on 31 May 2002. The WXM flight localization software produced a valid location in spacecraft (relative) coordinates. However, since no on-board real-time star camera aspect was available, an absolute localization could not be disseminated. A preliminary localization was reported as a GCN Position Notice at 01:54:22 UT, 88 min af"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0206151","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0206151/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}