Country of origin Japan Spacecraft type Earth observation Payload capacity up to 250 kg (550 lb) Manufacturer NEC | Applications Earth observation Design life 3 to 5 years Dry mass 250 kg | |
Dimensions 950 mm × 950 mm × 950 mm (37 in × 37 in × 37 in) (W×D×H) Similar Hisaki, WINDS, OICETS, Ōsumi, ETS‑VII | ||
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NEXTAR (from NEC Next Generation Star) is a Low Earth orbit Earth observation satellite bus designed and manufactured by NEC Space Systems of Japan. This three axis stabilized platform has a bus dry mass of 250 kg (550 lb), it can carry payloads up to 250 kg (550 lb) and 600 W. It uses tri-junction GaAs has an expected life between 3 and 5 years.
Contents
Its telemetry and control subsystem includes S band and X band channels.
Platform models
As of 2014, there are three different models of the NEXTAR standardized platform. All feature a common core of features like using the SpaceWire communications protocol, the SpaceCube2 on-board computer and autonomous control functions. The different models are:
List of satellites
Satellites using the NEXTAR platform.
References
NEXTAR Wikipedia(Text) CC BY-SA