Voyager
Mission Operations Status Report # 2012-09-28, Week Ending September 28, 2012
Command Transmission & Verification Operations
Voyager 1 command operations consisted of the
uplink of a Command Loss Timer Reset on 09/25 [DOY 269/1940z]. 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 09/25 [DOY 269/1512z]. The spacecraft received two
of the seven commands sent
Sequence
Generation Operations
Data
Return Operations
Voyager 1 Data Processing and Operations:
There were 44.3 hours of
DSN scheduled support for Voyager 1 of which 44.3 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 September 22. The EDR
backlog is 4 days.
Voyager 2 Data Processing and Operations:
There were 32.2 hours of
DSN scheduled support for Voyager 2 of which 26.8 hours were large aperture
coverage. There were no real-time or
schedule support changes made during the period.
There was
one significant outage of 2.9 hours on 09/28 [DOY 272] due to rain at DSS-43
[DR C109003].
Science instrument performance was nominal for all activities during this period. The EDR backlog is 4 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 |
4.03 |
22.27 |
263.9 |
30 |
|
2 |
4.86 |
26.63 |
265.0 |
31 |
RANGE,
VELOCITY AND ROUND TRIP LIGHT TIME AS OF THIS REPORT
|
|
Voyager
1 |
Voyager
2 |
|
Distance from the Sun (Km) |
18,250,000,000 |
14,914,000,000 |
|
Distance from the Sun (Mi) |
11,340,000,000 |
9,267,000,000 |
|
Distance from the Earth (Km) |
18,292,000,000 |
14,884,000,000 |
|
Distance from the Earth (Mi) |
11,366,000,000 |
9,248,000,000 |
|
Total Distance Traveled Since Launch (Km) |
24,473,000,000 |
23,413,000,000 |
|
Total Distance Traveled Since Launch (Mi) |
15,207,000,000 |
14,548,000,000 |
|
Velocity Relative to Sun (Km/sec) |
17.044 |
15.437 |
|
Velocity Relative to Sun (Mi/hr) |
38,126 |
34,532 |
|
Velocity Relative to Earth (Km/sec) |
44.400 |
41.325 |
|
Velocity Relative to Earth (Mi/hr) |
99,320 |
92,443 |
|
Round Trip Light Time (hh:mm:ss) |
33:53:04 |
27:34:54 |