Voyager Mission Operations Status
Report # 2009-02-27, Week Ending February 27, 2009
Command Transmission &
Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 02/23 [DOY 054/1730z]. The spacecraft received the command.
There were no command operations in support of Voyager 2 during the period due to the extended downtime of DSS-43.
Sequence Generation Operations
No
sequence development activities during this report period.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 67.8 hours of DSN scheduled support for Voyager 1 of which 27.9 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.
There was one significant outage of
0.9 hours on 02/22 [DOY 053] due to Y-axis Sub reflector problems at DSS-63 [DR
M105251].
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 21. The EDR backlog
is 2 days.
Voyager
2 Data Processing and Operations:
There were 40.5 hours of DSN scheduled support for Voyager 2 of which 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. 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 |
4.63 |
26.80 |
278.7 |
33 |
|
2 |
5.06 |
28.50 |
280.2 |
35 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 2/27/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,329,000,000 |
13,221,000,000 |
|
Distance
from the Sun (Mi) |
10,146,000,000 |
8,216,000,000 |
|
Distance
from the Earth (Km) |
16,342,000,000 |
13,303,000,000 |
|
Distance
from the Earth (Mi) |
10,154,000,000 |
8,266,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,731,000,000 |
19,751,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
12,882,000,000 |
12,273,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.090 |
15.516 |
|
Velocity
Relative to Sun (Mi/hr) |
38,228 |
34,707 |
|
Velocity
Relative to Earth (Km/sec) |
19.599 |
26.722 |
|
Velocity
Relative to Earth (Mi/hr) |
43,838 |
59,774 |
|
Round
Trip Light Time (hh:mm:ss) |
30:16:04 |
24:39:00 |