Voyager
Command Transmission &
Verification Operations
There were no command operations in support of Voyager 1 during the period.
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 05/21 [DOY 141/1347z]. The spacecraft received three of the seven commands sent.
Sequence Generation Operations
Continue
sequence development of CCSL B144 mini-sequence.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 86.8 hours of DSN scheduled support for Voyager 1 of which 12.2 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.
There was one significant outage of 3.8 hours on 05/22 [DOY 142] due to rain at DSS-65 [DR M105359].
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 May 22.
The EDR backlog is 2 day.
Voyager
2 Data Processing and Operations:
There were 57.1 hours of DSN scheduled support for Voyager 2 of which 22.1 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 |
4.32 |
26.66 |
277.9 |
34 |
|
2 |
5.04 |
28.36 |
279.2 |
34 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 5/22/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,452,000,000 |
13,330,000,000 |
|
Distance
from the Sun (Mi) |
10,223,000,000 |
8,283,000,000 |
|
Distance
from the Earth (Km) |
16,332,000,000 |
13,245,000,000 |
|
Distance
from the Earth (Mi) |
10,148,000,000 |
8,230,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,892,000,000 |
19,922,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
12,982,000,000 |
12,379,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.085 |
15.509 |
|
Velocity
Relative to Sun (Mi/hr) |
38,218 |
34,693 |
|
Velocity
Relative to Earth (Km/sec) |
29.369 |
24.675 |
|
Velocity
Relative to Earth (Mi/hr) |
65,697 |
55,197 |
|
Round
Trip Light Time (hh:mm:ss) |
30:15:00 |
24:32:32 |