Sazhen-S

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Sazhen-S
КОС "Сажень-С"
AZT-28 telescope at Yevpatoria
Site history
Built1984 (1984)
Built bySoviet Union

Sazhen-S (Russian: Сажень-С) is a

Russian unit of measurement which translates as fathom and has a length of 2.1 metres (6.9 ft). A similar system is Sazhen-T
.

History

A number of Sazhen-S installations were constructed at the network of

Main Space Intelligence Centre[2]
: 149 

Construction of the Sazhen-S facility in Dunaivtsi started in 1979 and it was commissioned in February 1984. In 2001 upgrade work started which has continued incrementally.[3]

Facility

Sazhen-S has five parts. The main part is an AZT-28 (АЗТ-28) telescope with a

laser ranging system, hinged light receivers, laser calibration equipment and a system to measure angular co-ordinates by using star catalogues.[4][5]

Sazhen-S can measure the slant range to space craft fitted with corner reflectors [4] which are in orbits with altitudes between 1,000 kilometres (620 mi) and 40,000 kilometres (25,000 mi) (between low Earth orbit and above geosynchronous orbit). It also measures the angular co-ordinates of space craft at altitudes between 19,000 kilometres (12,000 mi) and 40,000 kilometres (25,000 mi) using reflected light, providing the space craft is at or above a magnitude of 13. In addition it can measure the brightness of space craft if they are at a magnitude of 12 and above.[4][6]

Notes

  1. ^ the official English name is the Centre of the special information receiving and processing and the navigating field control. NIP-19 is its former Soviet name.

References

  1. ^ "History". CSIRP and NFC, Dunayivtsy. n.d. Retrieved 12 September 2012.
  2. ^ Thomson, Allen, ed. (2008-12-30). Sourcebook on the Okno (в/ч 52168), Krona (в/ч 20096) and Krona-N (в/ч 20776) Space Surveillance Sites (PDF). Federation of American Scientists. Retrieved July 31, 2012.
  3. ^ История (in Russian). CSIRP and NFC, Dunayivtsy. Retrieved 12 September 2012.
  4. ^ a b c "Laser/optical system Sazhen-S". Оружие России [Weapons of Russia]. Archived from the original on 16 April 2013. Retrieved 12 September 2012.
  5. ^ "КОС "Сажень-С"". CSIRP and NFC, Dunayivtsy. n.d. Retrieved 12 September 2012.
  6. ISBN 5-93799-020-X
    .

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