Voyager Mission Operations Status Report # 2013-12-27  Week Ending  December 27, 2013

 

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.

 

Sequence Generation Operations

 

Continue sequence development of CCSL B163.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 42.3 hours of DSN scheduled support for Voyager 1 of which 42.3 hours were large aperture coverage. One schedule support change made on 12/24 [DOY 358] reduced the DSS-63 track by 2.0 hours.  The total actual support for the period was 40.3 hours of which 40.3 hours were large aperture coverage.  There were no significant outages.

 

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 22.  The third frame of GS-4 data was recorded on December 26.  The EDR backlog is 2 days.

 

 

Voyager 2 Data Processing and Operations:

 

There were 45.7 hours of DSN scheduled support for Voyager 2 of which 22.3 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.  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.

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

5.39

19.58

258.9

22.8

2

5.36

25.89

260.1

30

 

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,917,000,000

15,503,000,000

Distance from the Sun (Mi)

11,754,000,000

9,633,000,000

Distance from the Earth (Km)

19,030,000,000

15,620,000,000

Distance from the Earth (Mi)

11,825,000,000

9,706,000,000

Total Distance Traveled Since Launch (Km)

25,825,000,000

24,764,000,000

Total Distance Traveled Since Launch (Mi)

16,047,000,000

15,387,000,000

Velocity Relative to Sun  (Km/sec)

17.035

15.420

Velocity Relative to Sun  (Mi/hr)

38,106

34,494

Velocity Relative to Earth  (Km/sec)

31.705

36.827

Velocity Relative to Earth  (Mi/hr)

70,921

82,459

Round Trip Light Time (hh:mm:ss)

35:14:54

28:56:42