Voyager Mission Operations Status
Report # 2012-01-20, Week Ending January 20, 2012
Command Transmission &
Verification Operations
Voyager
1 command operations consisted of the uplink of a TLM PURGE and a Command Loss
Timer Reset on 01/14 [DOY 014/0450z].
The spacecraft received all commands sent and all commands were
verified.
Voyager
2 command operations consisted of the uplink of a Command Loss Timer Reset and
CCSL B155A on 01/17 [DOY 017/2340z]. The
spacecraft received all commands sent and the CCSL was verified.
Sequence Generation Operations
Start
sequence development of CCSL A082B.
Data Return Operations
Voyager
1 Data Processing and Operations:
There were 37.1 hours of DSN scheduled support for
Voyager 1 of which 32.0 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 January 20. The EDR backlog is 2 days.
Voyager
2 Data Processing and Operations:
There were 30.3 hours of DSN scheduled support for
Voyager 2 of which 28.1 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. Activities included switching to X-Band high
power, LECP Observations on 1/17 (DOY 017 & 018), and LECP Observation on
1/19 (DOY 020).
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 |
109.95* |
23.85 |
266.8 |
19 |
|
2 |
4.28 |
27.00 |
268.0 |
39 |
*Two
LECP Observations, 1/17/12 & 1/18/12
RANGE, VELOCITY AND ROUND TRIP LIGHT
TIME AS OF THIS REPORT
|
|
Voyager 1 |
Voyager 2 |
|
Distance
from the Sun (Km) |
17,880,000,000 |
14,587,000,000 |
|
Distance
from the Sun (Mi) |
11,110,000,000 |
9,064,000,000 |
|
Distance
from the Earth (Km) |
17,967,000,000 |
14,708,000,000 |
|
Distance
from the Earth (Mi) |
11,164,000,000 |
9,139,000,000 |
|
Total
Distance Traveled Since Launch (Km) |
23,793,000,000 |
22,762,000,000 |
|
Total
Distance Traveled Since Launch (Mi) |
14,784,000,000 |
14,144,000,000 |
|
Velocity
Relative to Sun (Km/sec) |
17.049 |
15.449 |
|
Velocity
Relative to Sun (Mi/hr) |
38,137 |
34,557 |
|
Velocity
Relative to Earth (Km/sec) |
26.373 |
33.234 |
|
Velocity
Relative to Earth (Mi/hr) |
58,994 |
74,341 |
|
Round
Trip Light Time (hh:mm:ss) |
33:16:40 |
27:15:14 |