Specifications
The major specification of RazakSAT, as provided by the satellites' builder and operator (ATSB) in February 2010, are:
| Subsystems | Specifications |
|---|---|
| Altitude | 685 km |
| Inclination | 9 ° |
| 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 : < 0.2° (2 s) Pointing Knowledge : 1 arcmin (2 s) |
| 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-band TT&C uplink 38.4 kbs / 9,600 bit/s / 1,200 bit/s S-band TT&C downlink |
| Payload Data Management | 32 Gbit On-board solid-state memory 30 Mbit/s X band payload data downlink |
| Structure & Thermal | Ø1,200 × 1,200 mm Hexagonal shape Mass : 180 kg Modular structure Passive & Active thermal control |
| Mission Lifetime | > 3 Years |
Read more about this topic: Razak SAT