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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 (below; please scroll down)
- Instrument Synchronicity (below; please scroll down)
- Analog Housekeeping
- Digital Status
- CMS PHA/LEMMS PHA Data
- LEMMS PHA Data
- Rate Channel Data
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 8/23/19, 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.
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.