Voyager Mission Operations Status
Report # 2009-04-03, Week Ending April 3, 2009
Command Transmission &
Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 04/01 [DOY 091/2325z]. 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
Start
sequence development of CCSL B144.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 81.2 hours of DSN scheduled support for Voyager 1 of which 39.9 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.
There was one significant outage of 5.8 hours on 04/05 [DOY 093] due to a red Maser at DSS-15 [DR G109341].
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 27. The EDR backlog is
9 days.
Voyager
2 Data Processing and Operations:
There were 35.3 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 9 days.
Flight System Performance
Voyager
1 performance was nominal during this report period. Activity included a PMPCAL on 4/1 [DOY 091].
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 |
4.35 |
26.73 |
278.4 |
29 |
|
2 |
4.12 |
28.43 |
279.8 |
39 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 4/3/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,380,000,000 |
13,267,000,000 |
|
Distance
from the Sun (Mi) |
10,178,000,000 |
8,244,000,000 |
|
Distance
from the Earth (Km) |
16,321,000,000 |
13,280,000,000 |
|
Distance
from the Earth (Mi) |
10,142,000,000 |
8,252,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,789,000,000 |
19,825,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
12,918,000,000 |
12,319,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.088 |
15.513 |
|
Velocity
Relative to Sun (Mi/hr) |
38,224 |
34,701 |
|
Velocity
Relative to Earth (Km/sec) |
20.123 |
22.777 |
|
Velocity
Relative to Earth (Mi/hr) |
45,014 |
50,951 |
|
Round
Trip Light Time (hh:mm:ss) |
30:13:48 |
24:36:22 |