Voyager Mission Operations Status Report # 2012-02-10, Week Ending February 10, 2012

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 02/07 [DOY 038/1445z].  The spacecraft received the command.

 

There were no command operations in support of Voyager 2 during the period.

 

Sequence Generation Operations

 

Complete sequence development of CCSL A082B.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 38.8 hours of DSN scheduled support for Voyager 1 of which 28.9 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 February 10.  The EDR backlog is 2 days.

 

 

Voyager 2 Data Processing and Operations:

 

There were 34.8 hours of DSN scheduled support for Voyager 2 of which 9.8 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.

 

Voyager 2 performance was nominal during this report period.  Activity included a PMPCAL on 2/7 (DOY 038).

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

44.32*

23.52

266.6

33

2

5.11

26.99

267.8

39

                                                            *MAGROL, 2012-034

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

17,911,000,000

14,615,000,000

Distance from the Sun (Mi)

11,129,000,000

9,081,000,000

Distance from the Earth (Km)

17,961,000,000

14,720,000,000

Distance from the Earth (Mi)

11,161,000,000

9,146,000,000

Total Distance Traveled Since Launch (Km)

23,837,000,000

22,819,000,000

Total Distance Traveled Since Launch (Mi)

14,811,000,000

14,179,000,000

Velocity Relative to Sun  (Km/sec)

17.049

15.448

Velocity Relative to Sun  (Mi/hr)

38,136

34,555

Velocity Relative to Earth  (Km/sec)

22.062

29.625

Velocity Relative to Earth  (Mi/hr)

49,351

66,269

Round Trip Light Time (hh:mm:ss)

33:16:02

27:16:30