Voyager Mission Operations Status Report # 2014-01-17  Week Ending  January 17, 2014.

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 01/14 [DOY 014/1555z].  The spacecraft received the command.

 

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 01/16 [DOY 016/0207z].  The spacecraft received three of the seven commands sent.

 

Sequence Generation Operations

 

Continue sequence development of CCSL B163.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 44.8 hours of DSN scheduled support for Voyager 1 of which 44.8 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.

 

There were two significant outages on subsequent days both due to a Red antenna at DSS-14.  The first outage of 2.5 hours occurred 01/12 [DOY 012, DR G114553].  The second outage of 4.0 hours occurred the next day 01/13 [DOY 013, DR G114557]

 

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 12.  The third frame of GS-4 data was recorded on January 17.  The EDR backlog is 2 days.

 

 

Voyager 2 Data Processing and Operations:

 

There were 36.8 hours of DSN scheduled support for Voyager 2 of which 26.2 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

5.33

19.56

258.6

22.8

2

5.40

25.87

259.8

30.0

 

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,947,000,000

15,530,000,000

Distance from the Sun (Mi)

11,773,000,000

9,650,000,000

Distance from the Earth (Km)

19,038,000,000

15,650,000,000

Distance from the Earth (Mi)

11,830,000,00

9,725,000,000

Total Distance Traveled Since Launch (Km)

25,878,000,000

24,028,000,000

Total Distance Traveled Since Launch (Mi)

16,080,000,000

15,427,000,000

Velocity Relative to Sun  (Km/sec)

17.035

15.419

Velocity Relative to Sun  (Mi/hr)

38,106

34,492

Velocity Relative to Earth  (Km/sec)

26.193

33.614

Velocity Relative to Earth  (Mi/hr)

60,203

75,192

Round Trip Light Time (hh:mm:ss)

35:15:46

29:00:00