University of Tokyo CubeSat Project CRITICAL DESIGN ... - APRSAF
University of Tokyo CubeSat Project CRITICAL DESIGN ... - APRSAF
University of Tokyo CubeSat Project CRITICAL DESIGN ... - APRSAF
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Approach<br />
• The Satellite<br />
• Specification<br />
Weight<br />
Size<br />
Orbit<br />
Launch<br />
Operation Life<br />
OBC<br />
Attitude<br />
Orbit Control<br />
50kg (Bus 40kg, Mission 10kg)<br />
50cm ×50cm ×50cm<br />
Sun-synchronous Orbit (Altitude: 630 ~ 700km)<br />
Piggy-back by H-II (assumed)<br />
3 years (Two sats in two years to sustain the constellation)<br />
SOI-SH4 (radiation-pro<strong>of</strong> microcontroller)<br />
3-axis stabilized, 0.1°(Control Accuracy), 0.01°(Attitude Determination)<br />
Two-liquid type micro thruster (H2O2 + ethanol), Specific thrust :150sec<br />
Communication<br />
• Mission<br />
• Earth Observation<br />
• Constellation<br />
S band 1kbps, Command and Telemetry<br />
X band 30Mbps, Data downlink
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