Voyager Mission Operations Status
Report # 2009-06-19, Week Ending June 19, 2009
Command Transmission &
Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 06/19 [DOY 170/0250z]. The spacecraft received the command.
There were no command operations in support of Voyager 2 during the period.
Sequence Generation Operations
Continue
sequence development of CCSL A072.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 80.1 hours of DSN scheduled support for Voyager 1 of which 8.3 hours were large aperture coverage. There was one schedule support change on 06/18 [DOY 169] when of 0.8 hours of DSS-65 coverage was added. The total actual support was 80.9 hours of which 8.3 hours were large aperture coverage. There were no 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 June 19. The EDR backlog is
2 day.
Voyager
2 Data Processing and Operations:
There were 72.0 hours of DSN scheduled support for Voyager 2 of which 11.4 hours were large aperture coverage. There was one schedule support change on 06/17 [DOY 168] when 4.0 hours of DSS-45 coverage was added. The total actual support was 76.0 hours of which 11.4 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. Activities included switching to X-Band high
power, a MAGROL, followed by gyros OFF on 6/19 [DOY 170] and switching back to
X-Band low power on 6/20 [DOY 171].
PROPELLANT/POWER CONSUMABLES
STATUS AS OF THIS REPORT
|
Spacecraft |
Consumption One Week (Gm) |
Propellant Remaining (Kg) |
Output (Watts) |
Margin (Watts) |
|
1 |
4.51 |
26.64 |
277.5 |
33 |
|
2 |
5.31 |
28.34 |
278.8 |
33 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 6/19/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,493,000,000 |
13,366,000,000 |
|
Distance
from the Sun (Mi) |
10,249,000,000 |
8,305,000,000 |
|
Distance
from the Earth (Km) |
16,372,000,000 |
13,247,000,000 |
|
Distance
from the Earth (Mi) |
10,173,000,000 |
8,231,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,970,000,000 |
19,987,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
13,030,000,000 |
12,419,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.084 |
15.507 |
|
Velocity
Relative to Sun (Mi/hr) |
38,215 |
34,688 |
|
Velocity
Relative to Earth (Km/sec) |
35.174 |
28.694 |
|
Velocity
Relative to Earth (Mi/hr) |
78,681 |
64,186 |
|
Round
Trip Light Time (hh:mm:ss) |
30:19:36 |
24:32:48 |