cosmos.wikisort.org - Spacecraft

The Stellenbosch UNiversity SATellite or SUNSAT (COSPAR 1999-008C) was the first miniaturized satellite designed and manufactured in South Africa. It was launched aboard a Delta II rocket from the Vandenberg Air Force Base on 23 February 1999 to become the first launched South African satellite. Sunsat was built by post-graduate engineering students at the University of Stellenbosch. Its AMSAT designation was SO-35 (Sunsat Oscar 35).

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Last contact by ground control with SUNSAT was on 19 January 2001 and on 1 February 2001 the end of SUNSAT's functional life in orbit was announced. The satellite operated in orbit for nearly 2 years.[1]

It is predicted to reenter the atmosphere after about 30 years from launch.[2]

Specifications

• Size: 45 x 45 x 60 cm
• Mass: 64 kg
• Launcher: Delta II rocket, Mission P-91
• Program cost: US $5M (Approximate); the launch was free of charge as SUNSAT was orbited as a secondary payload. The primary payload of the launch was ARGOS, and the Danish Orsted satellite was another secondary payload.
• Planned lifetime: 4–5 years (NiCad Battery pack life)
• Main payloads:
  • Amateur radio communications
  • Data interchange
  • Stereo multispectral imager
• Attitude control: Gravity gradient and magnetorquers, reaction wheels when imaging
• Accuracy: 3 mrad pitch/roll, 6 mrad yaw
• 2 Micro Particle Impact Detectors were included as part of experiments conducted in orbit
  • A team (Zaahied Cassim and Rashid Mohamed) from Peninsula Technikon designed and built circuits for both their own piezo film technology and NASA supplied capacitive sensors.
• SSC 25636[3]

Pushboom imager

• Ground pixel size: 15 m x 15 m
• Image width: 51.8 km

References

• http://research.ee.sun.ac.za/sunsat/
• https://web.archive.org/web/20050414090039/http://esl.ee.sun.ac.za/projects/sunsat/news/20010201.html
• https://web.archive.org/web/20051224163310/http://www.amsat.org/amsat/sats/n7hpr/so35.html

На других языках

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[de] SUNSAT

SUNSAT (Stellenbosch University Satellite, auch OSCAR 35) ist der erste südafrikanische Satellit. Es handelt sich um einen Technologieerprobungs- und Amateurfunksatelliten, der von der Universität Stellenbosch gebaut und betrieben wurde.

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- [en] SUNSAT

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[es] Sunsat

Sunsat (acrónimo de Stellenbosch UNiversity SATellite) fue un microsatélite construido por estudiantes de la Universidad de Stellenbosch, en Sudáfrica. Fue lanzado el 23 de febrero de 1999 desde la base de Vandenberg mediante un cohete Delta.

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[ru] SUNSAT

Sunsat — первый искусственный спутник Земли, произведённый в ЮАР. Аппарат был запущен 23 февраля 1999 года с космодрома на авиабазе Ванденберг с помощью ракеты-носителя Дельта-2. Основная задача аппарата — проведение зондирования Земли, проведение экспериментов по передаче данных по радиосвязи и проведение образовательных программ[1].

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