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GemStar 1 (VITASat 1)

GemStar 1 [CTA]

The CTA GEMStar 1 (VITASAT 1) satellite partially sponsored by Volunteers In Technical Assistance (VITA) of Arlington Virginia, was launched at 2230 UTC from Vandenberg AFB on the 15-Aug-95, but a second stage failure destroyed the first flight of the Lockheed LLV-1 launch vehicle (later dubbed Athena-1).

The 136 kg mini-satellite measured 1 m in diameter and is 660 mm high. It employs gravity gradient stabilisation, was 3-axis stabillised, and was based on CTA Inc' GemStar bus (CTA refers to the satellite as GemStar 1).

It was intended to be placed into a 650 km orbit, receive 9.6 and 19.2 kbps in the 148-150.5 MHz band, and transmit at 9.6, 19.2 and 38.4 kbps in the 137-137 MHz and 400.15-401 MHz bands.

Nation: USA
Type / Application: Communication
Operator: CTA, VITA
Contractors: CTA
Configuration: GemStar Bus
Power: 4 deployable fixed solar arrays, batteries
Mass: 136 kg
Orbit: 650 km × 650 km (planned)
Satellite COSPAR Date LS Launch Vehicle Remarks
GemStar 1 (VitaSat 1) 1995-F04 15.08.1995 Va SLC-6 F LLV-1 (Athena-1)
Further VitaSat missions:

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