Voyager Mission Operations Status Report # 2012-12-07, Week Ending December 7, 2012

 

Command Transmission & Verification Operations

 

There were no command operations in support of Voyager 1 during the period.

 

There were no command operations in support of Voyager 2 during the period due to DSS-43 downtime.

 

Sequence Generation Operations

 

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 34.2 hours of DSN scheduled support for Voyager 1 of which 26.6 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 December 1.  The EDR backlog is 2 days.

 

Voyager 2 Data Processing and Operations:

 

There were 16.1 hours of DSN scheduled support for Voyager 2 of which 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.  The EDR backlog is 2 days.

 

 

Flight System Performance

 

Voyager 1 performance was nominal during this report period.  Activities included a PMPCAL on 12/5 (DOY 340) and X-Band high power/Full Memory Readout/X-Band low power on 12/6 (DOY 341).

 

Voyager 2 performance was nominal during this report period.  Activity included a swap from Gyros A&C to Gyros B&C on 12/6 (DOY 341).

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

5.71

21.60

263.1

26

2

7.74

26.53

264.2

16

 

 

RANGE, VELOCITY AND ROUND TRIP LIGHT TIME AS OF THIS REPORT

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,352,000,000

15,004,000,000

Distance from the Sun (Mi)

11,404,000,000

9,323,000,000

Distance from the Earth (Km)

18,473,000,000

15,105,000,000

Distance from the Earth (Mi)

11,479,000,000

9,386,000,000

Total Distance Traveled Since Launch (Km)

24,713,000,000

23,662,000,000

Total Distance Traveled Since Launch (Mi)

15,361,000,000

14,703,000,000

Velocity Relative to Sun  (Km/sec)

17.042

15.435

Velocity Relative to Sun  (Mi/hr)

38,123

34,526

Velocity Relative to Earth  (Km/sec)

35.914

39.306

Velocity Relative to Earth  (Mi/hr)

80,337

87,924

Round Trip Light Time (hh:mm:ss)

34:13:02

27:59:28