Sich-1

Sich-1
Mission typeEarth observation
COSPAR ID1995-046A
SATCAT no.23657
Spacecraft properties
Spacecraft typeOkean-O1
ManufacturerYuzhmash
Launch mass1,915 kilograms (4,222 lb)
Start of mission
Launch date31 August 1995, 06:49:59 (1995-08-31UTC06:49:59Z) UTC
RocketTsyklon-3
Launch sitePlesetsk 32/2
End of mission
Deactivated2001
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Eccentricity0.0022
Perigee altitude659 kilometres (409 mi)
Apogee altitude683 kilometres (424 mi)
Inclination82.3 degrees
Period98.7 minutes
Epoch21 August 1995, 02:49:59 UTC[1]
Sich satellite series

Sich-1 was the first Ukrainian Earth observation satellite launched in August 1995 by Ukrainian Tsyklon-3 rocket from Plesetsk Cosmodrome in Russia.[2][3] It operated until 2001. In this launch was also launched the first satellite of Chile, FASat-Alfa, that failed to detach from Sich-1. Both satellites, attached together, continue to orbit the Earth as of 2026.[4][5]

Mission goals

  • Monitor vegetation, soil and bodies of water.
  • Research electro-magnetic poles and electro-magnetic storms
  • Research plasma in the ionosphere
  • Study geological formations

See also

  • Sich-1 on nkau.gov.ua
  • Okean-O1 Series // eoPortal Directory
  • Herbert J. Kramer ”Observation of the Earth and Its Environment: Survey of Missions and Sensors", 4th edition 2002, pp. 1514 // Springer Verlag ISBN 3-540-42388-5
  • Okean-O1 1, 2, 3, 4, 5, 6, 7 // Gunter's space page
  • Ukrainian Sich-1 Spacecraft Model

References

  1. ↑ "NASA – NSSDCA – Spacecraft – Trajectory Details". nssdc.gsfc.nasa.gov. Retrieved 2 May 2018.
  2. ↑ "SICH-1 Image Page". Myweb Tiscali. Archived from the original on 11 October 2012. Retrieved 16 August 2017.
  3. ↑ "SICH-1 Image Page". Leshamilton. Retrieved 16 August 2017.
  4. ↑ "Sich-1 Satellite Mission Summary | CEOS Database". database.eohandbook.com. Retrieved 25 August 2026.
  5. ↑ Admin (1 September 2025). "30-anniversary of the launch of the first Ukrainian satellite "Sich-1"". НЦУВКЗ. Retrieved 25 August 2026.
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