NEC standard satellite system NEXTAR provides world-class remote sensing capabilities at a low cost, in a short time and with high reliability.
NEC revised the system architecture in order to achieve highly integrated and open system with adopting advanced COTS technology.
Realizing high performance satellite using NEXTAR
Modular architecture enables easy integration of various kinds of mission modules such as a high-resolution optical sensor, SAR sensor, wide-coverage optical sensor, hyper spectral sensor, and other modules for scientific missions. NEXTAR offers flexible, affordable solutions that meet each user’s requirements.
NEXTAR is a product that condenses the extensive experience in satellite system development that NEC has built up since 1970. With NEXTAR, NEC achieves a highly reliable and highly functional satellite system that can be delivered quickly, at a low cost.
Technical Data (Reference:NX-300L)
Core Bus Features
|Bus dry mass||250 kg|
|Payload mass capability||250 kg max.|
|Payload power supply||600 w max.|
Telemetry and Command
Mission Data Handling
|Data bus I/F||SpaceWire (IEEE 1355)|
|Data rate & storage||800 Mbps, 120GB|
|Control method||3-axis, zero momentum|
|Control capability||±6.6x10-2 deg|
|Bus voltage||50 V|
|Solar Array||TJ-GaAs cell|
|Bus module dimension||W950 x D950 x H950(mm)|
|Module||Bus / Mission separation|
System Block Diagram
Simulation Data (Optical sensor)
NEC Heritage of SAR Technology