Astron. Astrophys. Suppl. Ser. 138, 591-592

Real-time and pre-burst optical data for GRBs

R. Hudec¹ - Z. Ceplecha¹ - P. Spurný¹ - J. Florián¹ - A. Kolár¹ - J. Bocek¹ - J. Borovicka¹ - P. Kroll²

Send offprint request: R. Hudec

1 - Astronomical Institute, CZ-251 65 Ondrejov, Czech Republic
2 - Sonneberg Observatory, Sonneberg, Germany

Received January 21; accepted May 10, 1999

Abstract:

The photographic sky patrols still represent a unique database for investigations of positions of GRBs at the times just before, during and after the gamma-ray triggers. We report on the use of two such patrols for these purposes.

Key words: gamma-ray bursts -- optical transients -- sky monitoring