The Stellenbosch UNiversity SATellite is 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. Sunsat was built by post-graduate engineering students at the University of Stellenbosch. Its AMSAT designation was SO-35 (Sunsat Oscar 35).
- Size: 45 x 45 x 60 cm
- Mass: 64 kg
- Launcher: Delta II rocket, Mission P-91
- Program size: US $5M (Approximate)
- Lifetime: 4–5 years (NiCad Battery pack life)
- Main payloads:
- 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.
- Ground pixel size: 15 m x 15 m
- Image width: 51.8 km