SDS 4 [JAXA]
SDS 4 (Small Demonstration Satellite 4) is a small technology experiment satellite developed by JAXA.
As SDS-1, this small satellite (a cube of 50 kg and 50 cm edge, with a 120 W power available) will test several promising technologies. Unlike the SDS-1 satellite attitude SDS-4 can be controlled on its 3-axis pointing toward the Sun in normal operation phase and to Earth at nadir during his experimental phase. SDS-4 to be launched in 2011 with the GCOM-W1 satellite, and placed on a sun-synchronous orbit at 677 km altitude.
SDS-4 will carry four technology validation missions:
|Type / Application:||Technology, traffic monitoring|
|Equipment:||FOX, IST, QCM, SPAISE (AIS-receiver)|
|Power:||2 deployable fixed solar arrays, batteries|
|Orbit:||662 km × 673 km, 98.17°|
|SDS 4||2012-025C||17.05.2012||Ta YLP-1||H-2A-202||with GCOM-W, KOMPSAT 3, Horyu 2|