Voyager Mission Operations Status Report # 2012-08-17,
Week Ending August 17, 2012
Command Transmission & Verification Operations
Voyager 1 command operations consisted of the
uplink of a Command Loss Timer Reset on 08/16 [DOY 229/2210z]. The spacecraft received the command.
There were no command operations in support of Voyager 2 during the
period.
Sequence
Generation Operations
Data
Return Operations
Voyager 1 Data Processing and Operations:
There were 50.3hours of
DSN scheduled support for Voyager 1 of which 23.2hours were large aperture
coverage. There were no real-time or
schedule support changes made or significant outages during the period.
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 17. The EDR backlog is 1 days.
Voyager 2 Data Processing and Operations:
There were 55.8 hours of
DSN scheduled support for Voyager 2 of which 3.0 hours were large aperture
coverage. There were no real-time or
schedule support changes made during the period.
There were two significant outages both due to
rain over DSS-45. The first outage of 1.7
hours occurred on 08/16 [DOY 229, DR C108938].
The second outage of 2.7 hours occurred the next day on 08/17 [DOY 230,
DR C108941]
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. Activities included DTR Maintenance on 8/14 (DOY 227) and a
PMPCAL on 8/4 (DOY 228).
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 |
|
|
|
|
|
2 |
|
|
|
|
RANGE,
VELOCITY AND ROUND TRIP LIGHT TIME AS OF THIS REPORT
|
|
Voyager
1 |
Voyager
2 |
|
Distance from the Sun (Km) |
18,188,000,000 |
14,859,000,000 |
|
Distance from the Sun (Mi) |
11,301,000,000 |
9,233,000,000 |
|
Distance from the Earth (Km) |
18,145,000,000 |
14,757,000,000 |
|
Distance from the Earth (Mi) |
11,275,000,000 |
9,169,000,000 |
|
Total Distance Traveled Since Launch (Km) |
24,312,000,000 |
23,268,000,000 |
|
Total Distance Traveled Since Launch (Mi) |
15,107,000,000 |
14,458,000,000 |
|
Velocity Relative to Sun (Km/sec) |
17.044 |
15.439 |
|
Velocity Relative to Sun (Mi/hr) |
38,127 |
34,536 |
|
Velocity Relative to Earth (Km/sec) |
43.456 |
37.642 |
|
Velocity Relative to Earth (Mi/hr) |
97,208 |
84,202 |
|
Round Trip Light Time (hh:mm:ss) |
33:36:40 |
27:20:46 |