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TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2379 SUBJECT: XRF030824: Optical observations DATE: 03/09/04 18:42:16 GMT FROM: Arto Oksanen at Nyrola Obs., Finland <oksanen@nyrola.jklsirius.fi> A. Oksanen on behalf of the Nyrola Observatory GRB Team and the AAVSO International High Energy Network reports: Total of five 24 x 16 arcmin fields covering most of the HETE WXM error circle of XRF030824 (HETE 2821) was imaged with the 0.4m SCT at the Nyrola Observatory starting at August 24, 2003 20:40 UT, 4.0 hours after the inital burst under varying sky conditions (some clouds and haze). Total of 22 240s Rc-exposures were combined and compared to the Digitized Sky Survey (DSS2R). No new objects were found to the image limits of R = 17.5 - 19.0. Field mid UT exposure limiting R mag ------------------------------------------------ XRF030824 20:50 5 x 240s 19.0 XRF030824NE 21:15 3 x 240s 18.5 XRF030824NW 21:35 5 x 240s 17.5 (clouds) XRF030824SE 22:01 5 x 240s 19.0 XRF030824SW 22:24 4 x 240s 19.0 ------------------------------------------------ The final combined images are available on the web with an image showing the error circle and the sky coverage of each field: http://nyrola.jklsirius.fi/grb/xrf030824/ The AAVSO International High Energy network is grateful for a generous grant from the Curry Foundation and to NASA for the financial support for the High Energy Workshops for Amateur Astronomers.
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
