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Chapter 11. Typical On-board Systems

      Bus
      Fault protection
      Louvers
      Component support
      TWTA



      Spacecraft safing
      SCLK
      SCET
      TWTA
      TLM Packets
      Spacecraft commanding



      Precision Doppler
      Star scanner
      Sun sensor
      Reaction wheels
      Inertial reference unit
      HGA



      TWTA
      HGA
      LGA
      SCLK
      CDS
      Transponder



      To rotate the spacecraft as directed by the AACS computer.
      To transfer angular momentum to and from the spacecraft.
      To provide inertial reference to the AACS computer.
      To generate electrical power.



      To mechanically force the spacecraft's attitude.
      To provide celestial reference to the AACS computer.
      To provide inertial reference to the AACS computer.
      To mechanically force spacecraft spin.






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SECTION I  
ENVIRONMENT
1 The Solar System
2 Reference Systems
3 Gravity & Mechanics
4 Trajectories
5 Planetary Orbits
6 Electromagnetics

SECTION II
FLIGHT PROJECTS
7 Mission Inception
8 Experiments
9 S/C Classification
10 Telecommunications
11 Onboard Systems
12 Science Instruments
13 Navigation

SECTION III
FLIGHT OPERATIONS
14 Launch
15 Cruise
16 Encounter
17 Extended Operations
18 Deep Space Network