Voyager Mission Operations Status
Report # 2009-01-02, Week Ending January 2, 2009
Command Transmission &
Verification Operations
There were no Voyager 1 command
operations during this report period.
Voyager
2 command operations consisted of the successful uplink of seven bracketed
Command Loss Timer Resets on five minutes center using 1.0 Hz steps on 12/29
[DOY 354]. The spacecraft received two of the seven commands sent.
Sequence Generation Operations
Continue
sequence development of CCSL A070.
Data Return Operations
Voyager
1 Data Processing and Operations:
There
were 56.4 hours of scheduled support for Voyager 1 of which 27.6 hours were
large aperture coverage. Two hours of tracking time was lost at DSS-15 when the
antenna went to break
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 December 27. The EDR backlog is 9 days.
Voyager
2 Data Processing and Operations:
There were 57.5 hours of scheduled support for
Voyager 2 of which 11.8 hours were large aperture coverage. There were no
real-time or schedule support changes made during this period.
Science instrument performance was nominal for all
activities during this period. The EDR
backlog is 9 day.
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 |
5.43 |
26.89 |
279.3 |
34 |
|
2 |
4.66 |
28.54 |
280.8 |
35 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 1/2/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,247,000,000 |
13,149,000,000 |
|
Distance
from the Sun (Mi) |
10,095,000,000 |
8,171,000,000 |
|
Distance
from the Earth (Km) |
16,354,000,000 |
13,273,000,000 |
|
Distance
from the Earth (Mi) |
10,162,000,000 |
8,247,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,613,000,000 |
19,599,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
12,808,000,000 |
12,178,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.093 |
15.520 |
|
Velocity
Relative to Sun (Mi/hr) |
38,235 |
34,716 |
|
Velocity
Relative to Earth (Km/sec) |
30.302 |
36.017 |
|
Velocity
Relative to Earth (Mi/hr) |
67,783 |
80,567 |
|
Round
Trip Light Time (hh:mm:ss) |
30:17:30 |
24:35:42 |