Voyager Mission Operations Status
Report # 2012-02-17, Week Ending February 17, 2012
Command Transmission &
Verification Operations
Voyager
1 command operations consisted of the uplink of a Command Loss Timer Reset and
CCSL A082B on 02/17 [DOY 048/0545z]. The
spacecraft received all commands sent and the CCSL was verified.
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 02/15 [DOY 046/1827z].
The spacecraft received two of the seven commands sent.
Sequence Generation Operations
No
sequence development activity.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 47.2 hours of DSN scheduled support for
Voyager 1 of which 43.0 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
February 17. The EDR backlog is 2 days.
Voyager
2 Data Processing and Operations:
There were 31.3
hours of DSN scheduled support for Voyager 2 of which 27.3 hours were large
aperture coverage. One schedule support change made on 02/12 [DOY 043] began
the DSS-43 support 1.5 hours earlier. The total actual support was 32.8 hours
of which 28.8 hours were large aperture coverage. There were no 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.
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 |
4.21 |
23.52 |
266.5 |
33 |
|
2 |
5.93 |
26.98 |
267.7 |
39 |
RANGE, VELOCITY AND ROUND TRIP LIGHT
TIME AS OF THIS REPORT
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
17,921,000,000 |
14,624,000,000 |
|
Distance
from the Sun (Mi) |
11,136,000,000 |
9,087,000,000 |
|
Distance
from the Earth (Km) |
17,958,000,000 |
14,720,000,000 |
|
Distance
from the Earth (Mi) |
11,158,000,000 |
9,147,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
23,850,000,000 |
22,836,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
14,819,000,000 |
14,190,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.049 |
15.447 |
|
Velocity
Relative to Sun (Mi/hr) |
38,136 |
34,554 |
|
Velocity
Relative to Earth (Km/sec) |
20.931 |
28.457 |
|
Velocity
Relative to Earth (Mi/hr) |
46,821 |
63,656 |
|
Round
Trip Light Time (hh:mm:ss) |
33:15:38 |
27:16:32 |