TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2621 SUBJECT: XRF 040701, optical observations DATE: 04/07/05 21:55:51 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia A. de Ugarte Postigo (IAA-CSIC, Granada), P. Tristram (Univ. of Canterbury), Sasaki (Stelab, Nagoya Univ.), J. Gorosabel (IAA-CSIC), Ph. Yock (Univ. of Auckland), and A. J. Castro-Tirado (IAA-CSIC), report: "We have imaged the entire XRF 040701 error box provided by HETE-2 (Barraud et al. GCN #2620) with the 0.6-m telescope (+ MOA camera) at Mt.John Observatory starting on July 4.459 UT. Observations were performed with the MOA broad R-band filter with individual exposure times of 300 s. Visual comparison of the stacked first three images with the DSS-2 red plate revealed no optical counterpart candidate brighter than R~20.2." This message may be cited.