Analysis of errors in the tracking mechanisms of the 1.25-m telescope of the Crimean Laboratory of the SAI and the 1.5-m telescope of the Maidanak Observatory

Details Analysis of errors in the tracking mechanisms of the 1.25-m telescope of the Crimean Laboratory of the SAI and the 1.5-m telescope of the Maidanak Observatory Analysis of errors in the tracking mechanisms of the 1.25-m telescope of the Crimean Laboratory of the SAI and the 1.5-m telescope of the Maidanak Observatory

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008arep...52..598p&link_type=abstract

Astronomy Reports, Volume 52, Issue 7, pp.598-605

Astronomy and Astrophysics

Astronomy

95.55.Cs

Scientific paper

Low-frequency (0 0.5 Hz) errors in the positions of stars in the focal plane of the ZTE 1.25-m telescope of the Crimean Laboratory of the Sternberg Astronomical Institute and the AZT-22 1.5-m telescope of the Maidanak Observatory in Uzbekistan are analyzed using data obtained during the operation of two optical compensators designed to correct the tilt of incoming wave fronts. A spectral analysis is used to identify possible origins of these errors. The amplitudes of periodic errors in the main worm-and-worm gears of the tracking mechanisms have been measured to be 1.5″ (a period of 240 s) for the 1.25-m telescope and 0.15″ (167 s) for the 1.5-m telescope. The rates of constant drifts have also been determined.

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