Really grateful when finally for Malaysian citizen when their second remote sensing satellite reached the orbit after almost 10 years. RazakSAT lifted off on Monday, July 13, 2009. A little bit of specs for RazakSAT grab from RazakSAT manufacturer Astronautic Technology Sdn Bhd. ww.atsb.my
SubsystemsSpecifications
Altitude685 km
Inclination9 °
Payload (MAC)GSD : 2.5 m (PAN), 5 m (MS)
Swathwidth : 20 km @ 685 km
Attitude Determination & Control Subsystem (ADCS)Three-axis stabilization based on four (reaction wheels)
Pointing Accuracy : <>
Electrical Power Subsystem (EPS)GaAs/Ge solar cells on honeycomb substrate
NiCd batteries (18 Ahr)
Peak Power Tracking (PPT) & constant current control
Solar Power : >300 W @ EOL
Command & Data Handling Subsystem (C&DH)Two on-board computers
Telemetry and command interface modules
Analog Telemetry channels : up to 90
Digital Telemetry channels : up to 120
Telecommunication Subsystem (TS)9,600 bit/s / 1,200 bit/s S-brand TT&C uplink
38.4 kbs / 9,600 bit/s / 1,200 bit/s S-brand TT&C downlink
Payload Data Management32 Gbit On-board solid-state memory
30 Mbit/s X band payload data downlink
Structure & ThermalØ1,200 x 1,200 mm Hexagonal shape
Mass : 180 kg
Modular structure
Passive & Active thermal control
Mission Lifetime> 3 Years
Congratulations on the succesful launch and reach the orbit safely.

Posted by Joy on Tuesday, July 28, 2009
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