Voyager Mission Operations Status
Report # 2012-03-23, Week Ending March 23, 2012
Command Transmission &
Verification Operations
Voyager
1 command operations consisted of the uplink of a Command Loss Timer Reset on 03/22
[DOY 082/0055z]. 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 0.5 Hz steps on 03/22 [DOY 082/1432z].
The spacecraft received two of the seven commands sent.
Sequence Generation Operations
Continue
sequence development of CCSL B155B. Start sequence development of CCSL A083.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 38.8 hours of DSN scheduled support for
Voyager 1 of which 23.2 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
March 23. The EDR backlog is 2 days.
Voyager
2 Data Processing and Operations:
There were 37.6 hours of DSN scheduled support for
Voyager 2 of which 28.3 hours were large aperture coverage. There were no real-time or schedule support
changes made during the period.
There
was one significant outage of 5.3 hours on 03/20 [DOY 080] due to a Red Antenna
at DSS-43, DR C108598.
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. Activity included DTR Maintenance on 3/20
(DOY 080).
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 |
4.80 |
23.45 |
266.1 |
28 |
|
2 |
53.95* |
26.91 |
267.3 |
33 |
*MAGROL
2012-075/19:20
RANGE, VELOCITY AND ROUND TRIP LIGHT
TIME AS OF THIS REPORT
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
17,972,000,000 |
14,669,000,000 |
|
Distance
from the Sun (Mi) |
11,168,000,000 |
9,115,000,000 |
|
Distance
from the Earth (Km) |
17,936,000,000 |
14,705,000,000 |
|
Distance
from the Earth (Mi) |
11,145,000,000 |
9,137,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
23,908,000,000 |
22,914,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
14,856,000,000 |
14,238,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.048 |
15.446 |
|
Velocity
Relative to Sun (Mi/hr) |
38,134 |
34,551 |
|
Velocity
Relative to Earth (Km/sec) |
19.178 |
23.634 |
|
Velocity
Relative to Earth (Mi/hr) |
42,900 |
52,867 |
|
Round
Trip Light Time (hh:mm:ss) |
33:13:10 |
27:14:50 |