Voyager Mission Operations Status
Report # 2012-07-13, Week Ending July 13, 2012
Command Transmission &
Verification Operations
There were
no command operations in support of Voyager 1 during the period.
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 07/11 [DOY 193/1332z].
The spacecraft received three of the seven commands sent.
Sequence Generation Operations
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 34.6 hours of DSN scheduled support for
Voyager 1 of which 30.6 hours 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 July 13. The EDR backlog is
9 days.
Voyager
2 Data Processing and Operations:
There were 29.1 hours of DSN scheduled support for
Voyager 2 of which 7.8 hours were large aperture coverage. There were no real-time or schedule support
changes made during the period.
There
was one significant outage of 1.8 hours on 07/12 [DOY 194] due to heavy rain at
DSS-45 [DR C108885].
Science instrument performance was nominal for all activities during this period. The EDR backlog is 9 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 |
4.75 |
22.85 |
264.8 |
26 |
|
2 |
5.17 |
26.73 |
266.0 |
33 |
RANGE, VELOCITY AND ROUND TRIP LIGHT
TIME AS OF THIS REPORT
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
18,137,000,000 |
14,814,000,000 |
|
Distance
from the Sun (Mi) |
11,270,000,000 |
9,205,000,000 |
|
Distance
from the Earth (Km) |
18,036,000,000 |
14,688,000,000 |
|
Distance
from the Earth (Mi) |
11,207,000,000 |
9,127,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
24,186,000,000 |
23,162,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
15,029,000,000 |
14,392,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.045 |
15.441 |
|
Velocity
Relative to Sun (Mi/hr) |
38,128 |
34,539 |
|
Velocity
Relative to Earth (Km/sec) |
39.377 |
32.588 |
|
Velocity
Relative to Earth (Mi/hr) |
88,084 |
72,898 |
|
Round
Trip Light Time (hh:mm:ss) |
33:24:32 |
27:13:04 |