Voyager
Mission Operations Status Report # 2012-10-26, Week Ending October 26, 2012
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 10/22 [DOY 296/1437z]. The spacecraft received two
of the seven commands sent.
Sequence
Generation Operations
Data
Return Operations
Voyager 1 Data Processing and Operations:
There were 35.3 hours of
DSN scheduled support for Voyager 1 of which 34.4 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. The EDR backlog is 2 days.
Voyager 2 Data Processing and Operations:
There were 32.8 hours of
DSN scheduled support for Voyager 2 of which 32.8 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. Activities included DTR
PWS high rate data playback on 10/24 (DOY 298) and turning on the B&C gyros
on 10/26 (DOY 300).
Voyager 2 performance was nominal during this
report period. Activities included
switching to X-Band high power followed by a MAGROL on 10/23 (DOY 298).
PROPELLANT/POWER
CONSUMABLES STATUS AS OF THIS REPORT
|
Spacecraft |
Consumption One
Week (Gm) |
Propellant Remaining
(Kg) |
Output (Watts) |
Margin (Watts) |
|
1 |
9.98* |
22.24 |
263.6 |
30 |
|
2 |
53.87** |
26.56 |
264.7 |
31 |
*ISA
53371 Yaw Deadband @0.01 for 156 hours
**MAGROL
2012-298/0430
RANGE,
VELOCITY AND ROUND TRIP LIGHT TIME AS OF THIS REPORT
|
|
Voyager
1 |
Voyager
2 |
|
Distance from the Sun (Km) |
18,291,000,000 |
14,950,000,000 |
|
Distance from the Sun (Mi) |
11,365,000,000 |
9,289,000,000 |
|
Distance from the Earth (Km) |
18,381,000,000 |
14,979,000,000 |
|
Distance from the Earth (Mi) |
11,422,000,000 |
9,307,000,000 |
|
Total Distance Traveled Since Launch (Km) |
24,578,000,000 |
23,514,000,000 |
|
Total Distance Traveled Since Launch (Mi) |
15,272,000,000 |
14,611,000,000 |
|
Velocity Relative to Sun (Km/sec) |
17.043 |
15.436 |
|
Velocity Relative to Sun (Mi/hr) |
38,124 |
34,529 |
|
Velocity Relative to Earth (Km/sec) |
42.452 |
41.824 |
|
Velocity Relative to Earth (Mi/hr) |
94,963 |
93,558 |
|
Round Trip Light Time (hh:mm:ss) |
34:02:56 |
27:45:28 |