Voyager Mission Operations Status
Report # 2011-05-13,
Week Ending May 13, 2011
Command Transmission &
Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 05/12 [DOY 132/2130z]. 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 70.6 hours of DSN scheduled support for Voyager 1 of which 20.8 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 May 13. The EDR backlog is 1 day.
Voyager
2 Data Processing and Operations:
There were 46.4 hours of DSN scheduled support for Voyager 2 of which 5.5 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. The EDR backlog is 2 days.
Flight System Performance
Voyager
1 performance was nominal during this report period. Activities included LECP observations on 5/9
(DOY 130), 5/10 (DOY 131), and 5/11 (DOY 132 followed by Gyros OFF on 5/12 (DOY
132).
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 |
256.63* |
24.89 |
269.6 |
24 |
|
2 |
4.50 |
27.35 |
270.9 |
26 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF THIS REPORT
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
17,510,000,000 |
14,261,000,000 |
|
Distance
from the Sun (Mi) |
10,880,000,000 |
8,862,000,000 |
|
Distance
from the Earth (Km) |
17,396,000,000 |
14,195,000,000 |
|
Distance
from the Earth (Mi) |
10,810,000,000 |
8,820,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
22,961,000,000 |
21,977,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
14,267,000,000 |
13,656,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.056 |
15.462 |
|
Velocity
Relative to Sun (Mi/hr) |
38,152 |
34,587 |
|
Velocity
Relative to Earth (Km/sec) |
27.308 |
23.663 |
|
Velocity
Relative to Earth (Mi/hr) |
61,086 |
52,932 |
|
Round
Trip Light Time (hh:mm:ss) |
32:13:20 |
26:18:04 |