CASSINI In Space

 

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GALILEO

The Galileo Energetic Particles Detector

 

Galileo EPD Handbook

 

Appendices

 

Appendix A. EDR File Structure (continued)

 

3. EPD Subsystem Telemetry

Source: GLL-3-280, Rev. B, Appendix A, March 15, 1985

 

This section describes the format and content of the EPD output.

 

Table of Contents:

 

 

EPD Packet

 

The schematic of this packet is shown in Figure 1. One EPD packet is inserted in each LRS frame.

 

Figure 1. EPD Packet

 

Title: Analog
Housekeeping
Digital
Status
CMS PHA/
LEMMS PHA Data
LEMMS 
PHA Data
Rate Channel 
Data
Data Offset: 0 8 72 168 208
Bits/Packet: 8 64 96 40 400

 

Instrument Synchronicity

 

Within the EPD packet there will exist one major synchronism relative to the SCLK. The EPD synchronization index is equal to the SCLK Mod 91 count.

 

 

Next: Analog Housekeeping

 

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Updated 1/2/19, Cameron Crane

QUICK FACTS

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.