GALILEO
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Galileo Table of Contents Page.
The Galileo Energetic Particles Detector
Galileo EPD Handbook
Chapter 2. EPD Software
EPD SBAND Mission Software Requirements (continued)
Source: S. Jaskulek, various dates
EPD Memory Map
Table 16. Galileo EPD Subcommutated Housekeeping Functions
Position | Retain | Function |
1 | x | Motor Housing Temperature |
2 | x | Motor Telemetry Byte #1 |
3 | x | Motor Telemetry Byte #2 |
4 | x | Motor Telemetry Byte #3 |
5 | x | Autocalibrator Index #1 |
6 | x | Autocalibrator AGC Voltage #1 |
7 | x | Motor Telemetry Byte #4 |
8 | x | Motor Telemetry Byte #5 |
9 | x | LEMMS Telescope Temperature |
10 | x | Number of Invalid Bus Commands (Modulo 256) |
11 | Autocalibrator Index #2 | |
12 | Autocalibrator AGC Voltage #2 | |
13 | Memory Dump Cursor (8 MSB) | |
14 | Motor Dwell Period | |
15 | CMS Telescope Temperature | |
16 | Supervisory Data Parity Error Count | |
17 | Autocalibrator Index #3 | |
18 | Autocalibrator AGC Voltage #3 | |
19 | x | HV Command Level (and MSB of UM Checksum Limit) |
20 | x | Subcom Control (and LSB of UM Checksum Limit) |
21 | x | Main Electronics Temperature |
22 | Memory Checksum | |
23 | Autocalibrator Index #4 | |
24 | Autocalibrator AGC Voltage #4 | |
25 | x | HV Command Limit (and MSB of LM Checksum Limit) |
26 | Spare ["F0" Cmd] (and LSB of LM Checksum Limit) | |
27 | x | EPD Input Current |
28 | EPD Data Parity Error Count | |
29 | Autocalibrator Index #5 | |
30 | Autocalibrator AGC Voltage #5 | |
31 | Spare | |
32 | Spare | |
33 | x | +60 Volts Bias |
34 | x | Power Switch Status Byte #1 (LEMMS pwr sw) |
35 | Autocalibrator Index #6 | |
36 | Autocalibrator AGC Voltage #6 | |
37 | Spare | |
38 | Spare | |
39 | Log Amp Temperature | |
40 | x | Power Switch status byte #2 (Gen. pwr sw) |
41 | Autocalibrator Index #7 | |
42 | Autocalibrator AGC Voltage #7 | |
43 | Spare | |
44 | Spare | |
45 | x | -15 Volts Power |
46 | x | Power Switch Status Byte #3 (Misc. Enables) |
47 | Autocalibrator Index #8 | |
48 | Autocalibrator AGC Voltage #8 | |
49 | x | Upper Alarm Threshold for EPD Input Current |
50 | x | Lower Alarm Threshold for EPD Input Current |
51 | x | +10 Volts Power |
52 | x | Power Switch Status Byte #4 (CMS pwr switches) |
53 | Autocalibrator Index #9 | |
54 | Autocalibrator AGC Voltage #9 | |
55 | x | Upper Alarm Threshold for Motor Temperature |
56 | x | Lower Alarm Threshold for Motor Temperature |
57 | x | +6 Volts Power |
58 | PHA Control Byte (uncorrected) | |
59 | Autocalibrator Index #10 | |
60 | Autocalibrator AGC Voltage #10 | |
61 | x | LEMMS Telescope Temp. Upper Alarm Threshold |
62 | x | LEMMS Telescope Temp. Lower Alarm Threshold |
63 | x | +3 Volts Power |
64 | x | Number of EPD commands executed (via S/W patch) |
65 | Autocalibrator Index #11 | |
66 | Autocalibrator AGC Voltage #11 | |
67 | CMS Telescope Temp. Upper Alarm Threshold | |
68 | CMS Telescope Temp. Lower Alarm Threshold | |
69 | x | HV Monitor |
70 | Spare | |
71 | Autocalibrator Index #12 | |
72 | Autocalibrator AGC Voltage #12 | |
73 | x | Main Electronics Temp. Upper Alarm Threshold |
74 | x | Main Electronics Temp. Lower Alarm Threshold |
75 | x | -6 Volts Power |
76 | Spare | |
77 | Autocalibrator Index #13 | |
78 | Autocalibrator AGC Voltage #13 | |
79 | x | +10 Volts Power Upper Alarm Threshold |
80 | x | +10 Volts Power Lower Alarm Threshold |
81 | x | +10 Volts Power |
82 | Spare | |
83 | Autocalibrator Index #14 | |
84 | Autocalibrator AGC Voltage #14 | |
85 | PHA Control Byte | |
86 | Spare | |
87 | x | 5.12V Ref. Monitor |
88 | x | Spare (previously HV Command Limit) |
89 | x | Spare (previously HV Command Level) |
90 | Spare | |
91 | Spare |
Next: Appendix A. Buffer Storage for the EPD Rate Channel Bins
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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.