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The Galileo Energetic Particles Detector


Galileo EPD Handbook


Chapter 2. EPD Software


LGA Processing Software for the Energetic Particles Detector (continued)

Source: C. Brull and S. Stone, December 19, 1998


Appendix A.  Revisions




  • Add HV monitor value byte (Section 3.1.3)
  • Add spare header bytes (Section 3.1.10)
  • Add summary of indexing for rate channels (Section 3.2.4)
  • Total record length now 9092 bytes, pending specification of derived quantities.




  • Included additional specification to derived quantities block. Byte offsets and block size still TBD. Section (??)




  • Change header on Section 3.6 to reflect the correct number of bytes in the section.
  • Modify time accumulation block (Section 3.3) to keep one accumulation time per sector, instead of per sector per channel. The size is reduced to 96 bytes from 2368. New array definitions are T16[16], T6[6], and T1[2].




  • Add Jovicentric Spin Axis coordinate system to Sections 3.1.5, 3.1.6, and 3.1.8.
  • Include variance of magnetic field in Section 3.1.7.
  • Add pitch and phase angles as Section 3.1.9.
  • Remove derived quantities section.




  • Update offsets listed in Section 3.2.4.
  • PHA values changed to bytes instead of floats in Section 3.6.




  • Replace Sector1 reference block with radius vector to Jupiter and corotation vector in magnetic coordinates.




  • Most recent revision



Next: Appendix B. Coordinate Systems 


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Updated 8/23/19, Cameron Crane


Manufacturer: The Galileo Spacecraft was manufactured by the Jet Propulsion Laboratory, Messerschmitt-Bölkow-Blohm, General Electric, and the Hughes Aircraft Company.

Mission Duration: Galileo was planned to have a mission duration of around 8 years, but was kept in operation for 13 years, 11 months, and 3 days, until it was destroyed in a controlled impact with Jupiter on September 21, 2003.

Destination: Galileo's destination was Jupiter and its moons, which it orbitted for 7 years, 9 months, and 13 days.