Voyager Mission Operations Status Report # 2009-08-07, Week Ending August 7, 2009
Command Transmission & Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 08/04 [DOY 216/2130z]. The spacecraft received the command.
Voyager 2 command operations consisted of the uplink of seven bracketed Command Loss Timer Resets sent on five-minute centers using 0.5 Hz steps on 08/04 [DOY 216/1537z]. The spacecraft received three of the seven commands sent.
Sequence Generation Operations
Complete sequence development of CCSL B145. Start sequence development of the HPOINT Table update (Part 2).
Data Return Operations
Voyager 1 Data Processing and Operations:
There were 101.1 hours of DSN scheduled support for Voyager 1 of which 75.2 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.
There was one significant outage of 0.6 hours on 08/06 [DOY 218] due to late AOS at DSS-15 [DR G109591].
Science instrument performance was nominal for all activities during this period. One frame of GS-4 data was recorded this week. A second frame of GS-4 data was recorded on August 7. The EDR backlog is 2 day.
Voyager 2 Data Processing and Operations:
There were 68.9 hours of DSN scheduled support for Voyager 2 of which 38.8 hours were large aperture coverage. There was one schedule support change on 08/06 [DOY 218] when 2.3 hours of DSS-43 support was added. The total actual support was 71.2 hours of which 41.1 hours were large aperture coverage. There were no significant outages during the period
Science instrument performance was nominal for all activities during this period. The EDR backlog is 2 days.
Flight System Performance
Voyager 1 performance was nominal during this report period.
Voyager 2 performance was nominal during this report period.
PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT
|
Spacecraft |
Consumption One Week (Gm) |
Propellant Remaining (Kg) |
Output (Watts) |
Margin (Watts) |
|
1 |
4.58 |
26.60 |
277.0 |
19 |
|
2 |
4.89 |
28.25 |
278.2 |
23 |
RANGE, VELOCITY AND ROUND TRIP LIGHT TIME AS OF 8/7/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance from the Sun (Km) |
16,565,000,000 |
13,429,000,000 |
|
Distance from the Sun (Mi) |
10,293,000,000 |
8,345,000,000 |
|
Distance from the Earth (Km) |
16,504,000,000 |
13,315,000,000 |
|
Distance from the Earth (Mi) |
10,255,000,000 |
8,273,000,000 |
|
Total Distance Traveled Since Launch (Km) |
21,137,000,000 |
20,125,000,000 |
|
Total Distance Traveled Since Launch (Mi) |
13,134,000,000 |
12,505,000,000 |
|
Velocity Relative to Sun (Km/sec) |
17.081 |
15.504 |
|
Velocity Relative to Sun (Mi/hr) |
38,209 |
34,680 |
|
Velocity Relative to Earth (Km/sec) |
42.552 |
36.316 |
|
Velocity Relative to Earth (Mi/hr) |
95,186 |
81,236 |
|
Round Trip Light Time (hh:mm:ss) |
30:34:20 |
24:40:24 |