The catalogue of the heliocentric orbits of 817 meteors recorded within the double station program of the video observation of meteors ar the Ondřejov observatory in years 1998-2001 is presented. The electronic version of the catalogue is available on http://www.asu.cas.cz/-meteor/catalogues. and Součástí článku jsou tabulky na str. 4-32.
Preliminary results of an extended program of examination of the Ondřejov and Sonneberg plate collectons for possible optical counterparts to gamma-ray bursters are presented. One optical image was found on 3 different plates at the same position suggesting it may be related to gamma-ray burster 1979 March
25 B. Results of both archival and time-correlated searches are discussed for GRBS as well as for the Perseus Flasher.