Voyager
Command Transmission &
Verification Operations
Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 05/26 [DOY 146/1430z]. The spacecraft received the command.
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 05/27 [DOY 147/1547z]. The spacecraft received three of the seven commands sent
Sequence Generation Operations
Start
sequence development of CCSL A072. Complete sequence development of B144
mini-sequence.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 88.1 hours of DSN scheduled support for Voyager 1 of which 16.8 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 May 29. The EDR backlog is 2
day.
Voyager
2 Data Processing and Operations:
There were 54.8 hours of DSN scheduled support for Voyager 2 of which 7.8 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. Activity included a PMPCAL on 5/27 [DOY 147].
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 |
4.88 |
26.65 |
277.8 |
33 |
|
2 |
5.02 |
28.35 |
279.1 |
33 |
RANGE, VELOCITY AND ROUND TRIP
LIGHT TIME AS OF 5/29/2009
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
16,463,000,000 |
13,343,000,000 |
|
Distance
from the Sun (Mi) |
10,229,000,000 |
8,909,000,000 |
|
Distance
from the Earth (Km) |
16,339,000,000 |
13,243,000,000 |
|
Distance
from the Earth (Mi) |
10,153,000,000 |
8,229,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
20,910,000,000 |
19,944,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
12,993,000,000 |
12,393,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.085 |
15.509 |
|
Velocity
Relative to Sun (Mi/hr) |
38,217 |
34,691 |
|
Velocity
Relative to Earth (Km/sec) |
30.876 |
25.968 |
|
Velocity
Relative to Earth (Mi/hr) |
69,067 |
58,089 |
|
Round
Trip Light Time (hh:mm:ss) |
30:15:52 |
24:32:22 |