Fundamental Technologies

Galileo Spacecraft Pages

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:08 72 168208
Bits/Packet:864 96 40400

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

Return to Galileo EPD Handbook Table of Contents page.
Return to Fundamental Technologies Main Galileo Page.
Return to Fundamental Technologies Home Page.

Updated 9/5/04, T. Hunt-Ward
tizby@ftecs.com