1. A&AE 450 – Senior Design Power Group - Avionics February 13, 2000
Wiyan Wong

2. Other Spacecrafts Apollo, Gemini
Avionics are different due to advancement in technology.
Missions to Mars (Pathfinder, Global Surveyor)
Unmanned – no computer displays, hand controllers.
Space Shuttle
Close to Earth.

3. Avionics Data Processing Navigation, Guidance , Control CPUs
Control Panel Displays
Data Storage
Navigation, Guidance , Control
Sensors
Hand Controllers

4. Weight guess-timation

5. Weight and Power
Weight: ~ 5.0 mtons
Power: ~ 6.0 kW

6. Cost Most systems are from off-the-shelf designs. How about softwares?
Might be expensive.
Could analyze the cost based on Barry Boehm’s Constructive Cost Model (COCOMO).

7. Future
Software Cost
Risk Assessment