Voyager Mission Operations Status
Report # 2009-04-10, Week Ending April 10, 2009
Command Transmission &
Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset and CCSL A071 on 04/06 [DOY 096/2250z]. The spacecraft received all commands sent and the CCSL was verified
There were no command operations in support of Voyager 2 during the period due to the extended downtime of DSS-43.
Sequence Generation Operations
Continue
sequence development of CCSL B144.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 79.3 hours of DSN scheduled support for Voyager 1 of which 54.9 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 April 3. The EDR backlog is
8 days.
Voyager
2 Data Processing and Operations:
There were 36.8 hours of
DSN scheduled support for Voyager 2 of which 0 hours were large aperture
coverage. One schedule change was made on 04/10 [DOY 100] when 5.5 hours of
DSS-43 support was added due to an early return to operations (RTO). The total
actual support was 42.3 hours of which 5.5 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 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 a PMPCAL on 4/7 [DOY 097].
PROPELLANT/POWER CONSUMABLES
STATUS AS OF THIS REPORT
|
Spacecraft |
Consumption One Week (Gm) |
Propellant Remaining (Kg) |
Output (Watts) |
Margin (Watts) |
|
1 |
4.89 |
26.73 |
278.4 |
29 |
|
2 |
5.78 |
28.43 |
279.7 |
39 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 4/10/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,391,000,000 |
13,276,000,000 |
|
Distance
from the Sun (Mi) |
10,185,000,000 |
8,249,000,000 |
|
Distance
from the Earth (Km) |
16,319,000,000 |
13,274,000,000 |
|
Distance
from the Earth (Mi) |
10,140,000,000 |
8,248,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,802,000,000 |
19,839,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
12,925,000,000 |
12,327,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.088 |
15.513 |
|
Velocity
Relative to Sun (Mi/hr) |
38,223 |
34,700 |
|
Velocity
Relative to Earth (Km/sec) |
21.058 |
22.473 |
|
Velocity
Relative to Earth (Mi/hr) |
47,105 |
50,270 |
|
Round
Trip Light Time (hh:mm:ss) |
30:13:32 |
24:35:42 |