Photometry and position observations of Saturnian satellites during their mutual eclipses and occultations in 1995 performed at the Observatories in Russia and Kazakhstan

Photometry of mutual eclipses and occultations of planetary satellites is a powerful technique to explore these bodies. Observations of these rare eve nts are a source of much precise information. In 1995 the Celestial Mechani cs Department of the Sternberg Astronomical Institute (SAI) has organized t he observations of mutual eclipses and occultations of Saturnian satellites on a number of observatories of the Commonwealth of Independent States (CI S) - the former Soviet Union (FSU). The ephemerides of satellites and their observing conditions have been computed beforehand and mailed these data t o many observatories of CIS. The Crimean laboratory (CL) of the Sternberg A stronomical Institute, two observatories of the Fesenkov Astrophysical Inst itute of the Academy of Sciences of the Republic of Kazakhstan (FAI AS RK) in Almaty, and the Main Astronomical Observatory of Russian Academy of Scie nces (MAO RAS) in Pulkovo took part in observations. A photoelectric photom eter was used in CL of SAI: a CCD was employed to secure satellite images i n FAI AS RK, and both CCD and photographic plates were used in MAO RAS. As a result of this observing campaign, photometric data and light curves were obtained for three mutual eclipses and occultations of Saturnian satellite s, A number of position observations made allowed us to measure relative co ordinates of satellites. Astrometric information has already been derived f rom photometric data. The mutual apparent positions of satellites were calc ulated with an accuracy of 0".002 - 0".003. In this paper observations are described and the parameters characterizing the observed phenomena are give n. The results of observations are available in electronic form. This work supported by the Russian Foundation for Basic Research, projects Nos. 95-02-05042, 97-02-16551.