Theoretical aspects of the modernization of the satellite four-axis mounting LD-2

1Bilinsky, AI, 1Vovchyk, Ye.B, 2Blagodyr, Ya.T
1Astronomical Observatory of the Ivan Franko National University of L’viv. L’viv, Ukraine
2Astronomical Observatory of the Ivan Franko National University of L’viv, L’viv, Ukraine
Kosm. nauka tehnol. 2012, 18 ;(2):55–58
Publication Language: Ukrainian
Full analytic calculations for the coordinates of the four-axis guiding mounting are given. Our computational results for the two-axis and four-axis guiding mountings are compared. Some advantages of four-axis mounting for the guiding of low-orbit Earth artificial satellites are shown. Acceptable values for coordinates and for velocities of their change during a satellite (star) guiding will be used for further modernization of the guiding mounting LD-2 in the Astronomical Observatory of the LNU.
Keywords: four-axis guiding mounting, satellite guiding
1. Vovchik E. B. Improving Accuracy elektrofotometricheskih iskysstvennyh observations of celestial bodies when working in small telescopes: Extended abstract of candidate’s thesis, 15 p. (Kyiv, 1984) [in Russian].
2. Vovchik E., Vygon V., Krupej S. et al. Bicolor EAS monitoring,  Nabljud. iskusstv. nebes. tel, N 84 (Pt.1), 120—124 (1988) [in Russian].
3. Lapushka K. K. Satellite webcam AFU-75: Tutorial, 174 p. (Astrosovet AN SSSR, Riga, Moscow, 1971) [in Russian].
4. Liigant M., Einasto S. On the theory of automatic satellite tracking telescopes,  Astron. zhurn., 37, is. 6, 1087—1095 (1960) [in Russian].
5. Massevitch A. G., Losinsky A. M. Photographic tracking of artificial satellites, Nauch. inform., N 18, 3—36 (1970) [in Russian].
6. Yurov E. A. The comparison of accuracy of artificial satellite's observations by laser radar "Interkosmos" and tracing camera AFU-75,  Nauch. inform., N 58, 14—22 (1986) [in Russian].
7. Blagodyr Ja., Bilinsky A., Martynyuk-Lototsky K., et al. Overview and performance of the Ukrainian SLR station «Lviv-1831»,  Artif. Satell., 42 (1), 9—15 (2007).
8. Vovchyk Ye., Blagodyr Ya., Bilinsky A., et al. The electrophotometric observations of the artificial objects,  Adv. Space Res., 28 (9), 1309—1313 (2001).  

9. Vovchyk Ye., Blagodyr Ya., Bilinsky A., et al. Electrofotometry of the artificial celectial bodies. Problems of the instrument equipment, observations, interpretation of the results, Astron. and Astrophys. Transactions, 22 (4-5), 645—650 (2003).  

10. Vovchyk Ye., Blagodyr Ya., Bilisky A., Lohvynenko A. Electrophotometry of artificial celestial bodies: equipment problems, observation and interpretation of the results,  J. Quant. Spectrosc. and Radiat. Transfer, 88, 211—217 (2004).