Voyager Mission Operations Status
Report # 2011-09-09,
Week Ending September 9, 2011
Command Transmission &
Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 09/06 [DOY 249/2030z]. 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 1.0 Hz steps on 09/08 [DOY 251/1447z]. The spacecraft
received one of the seven commands sent.
Sequence Generation Operations
Continued
sequence development of CCSL A081.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 44.2 hours of DSN scheduled support for Voyager 1 of which 37.3 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 September 9. The EDR backlog is 9 days.
Voyager
2 Data Processing and Operations:
There were 48.1 hours of DSN scheduled support for Voyager 2 of which 16.5 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.
There was one significant outage of 1.5 hours on 09/06 [DOY 249] due to rain at DSS-45 [DR G108195].
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. Activity included turning on the BC Gyros on 9/9
(DOY 252).
PROPELLANT/POWER CONSUMABLES
STATUS AS OF THIS REPORT
|
Spacecraft |
Consumption One Week (Gm) |
Propellant Remaining (Kg) |
Output (Watts) |
Margin (Watts) |
|
1 |
4,89 |
24.44 |
268.2 |
22 |
|
2 |
5.53 |
27.22 |
269.6 |
9 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF THIS REPORT
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
17,685,000,000 |
14,415,000,000 |
|
Distance
from the Sun (Mi) |
10,989,000,000 |
8,957,000,000 |
|
Distance
from the Earth (Km) |
17,688,000,000 |
14,347,000,000 |
|
Distance
from the Earth (Mi) |
10,991,000,000 |
8,915,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
23,351,000,000 |
22,306,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
14,510,000,000 |
13,861,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.053 |
15.455 |
|
Velocity
Relative to Sun (Mi/hr) |
38,145 |
34,572 |
|
Velocity
Relative to Earth (Km/sec) |
44.524 |
39.997 |
|
Velocity
Relative to Earth (Mi/hr) |
99,597 |
89,470 |
|
Round
Trip Light Time (hh:mm:ss) |
32:45:54 |
26:35:12 |