{"paper":{"title":"LOTIS, Super-LOTIS, SDSS and Tautenburg Observations of GRB 010921","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Henden, A. Nitta, B. Chen, B. C. Lee, B. Stecklum, C. Stoughton, D. E. Vanden Berk, D. H. Hartmann, D. Long, D. L. Tucker, D. Perez, D. P. Schneider, D. Q. Lamb, D. York, E. H. Neilsen, G. G. Williams, G. S. Hennessy, H. J. Newberg, H. S. Park (Lawrence Livermore National Laboratory), I. Csabai, J. Adelman, J. Brinkmann, J. Krzesinski, J. W. Briggs, K. Hurley, K. Lindsay, K. Ziock, M. Harvanek, N. Gehrels, P. R. Newman, R. Nemiroff, S. A. Snedden, S. D. Barthelmy, S. J. Kleinman, S. Kent, S. Klose, T. Cline, W. Periera, Zeljko Ivezic","submitted_at":"2001-12-17T15:58:48Z","abstract_excerpt":"We present multi-instrument optical observations of the High Energy Transient Explorer (HETE-2)/Interplanetary Network (IPN) error box of GRB 010921. This event was the first gamma ray burst (GRB) localized by HETE-2 which has resulted in the detection of an optical afterglow. In this paper we report the earliest known observations of the GRB010921 field, taken with the 0.11-m Livermore Optical Transient Imaging System (LOTIS) telescope, and the earliest known detection of the GRB010921 optical afterglow, using the 0.5-m Sloan Digital Sky Survey Photometric Telescope (SDSS PT). Observations wi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0112397","kind":"arxiv","version":1},"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/0112397/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"}