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The one-meter telescope-reflector `Saturn' (D=1 m, F = 4 m) was partiallyrenovated at the Pulkovo observatory at the end of 2014. The telescope wasequipped by CCD camera S2C with 14x14 arcmin field of view and 824 mas per pixscale. The observations of outer Jovian satellites have been performed in atest mode since January 2015. The exposure time of 30 seconds allows us toobtain images of stars up to magnitude 19.5 with the present state of themirror and the equipment. The observations of outer Jovian satellites have beenperformed during testing period. These objects are interesting targets becausetheir astrometric observations required to improve ephemeris and dynamicstudies. Satellites positions have been determined on the basis of CCD imagesobtained within 6 nights. Astrometric reduction is performed by linear methodusing HCRF/UCAC4 and HCRF/URAT1. Internal accuracy of satellites positions hasbeen estimated as 20 - 100 mas. The absolute values of residuals O-C do notexceed 100 mas in most cases. The independent tests have been carried out bythe direct comparison with the results of observations of the Jovian satelliteHimalia performed simultaneously by the Normal astrograph (the largestdifference was 113 mas). This work has been partially supported by RFBR(12-02-00675-a) and the 22 Program of RAS Praesidium.

Astrometric observations of outer Jovian satellites with the `Saturn' telescope. First results