Voyager Mission Operations Status Report # 2014-03-07  Week Ending  March 7, 2014.

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 03/05 [DOY 064/1715z].  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 1.0 Hz steps on 03/04 [DOY 063/2132z].  The spacecraft received one of the seven commands sent.

 

Sequence Generation Operations

 

Continue sequence development of CCSL A091.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 45.1 hours of DSN scheduled support for Voyager 1 of which 45.1 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.  One frame of GS-4 data was recorded this week.  The second frame of GS-4 data was recorded on March 6.  The third frame of GS-4 data was recorded on March 1.  The EDR backlog is 2 days.

 

Voyager 2 Data Processing and Operations:

 

There were 43.4 hours of DSN scheduled support for Voyager 2 of which 32.6 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.  The EDR backlog is 2 days.

 

Flight System Performance

 

Voyager 1 performance was nominal during this report period. Activity included turning the B&C Gyros on 3/4 (DOY 063).

 

Voyager 2 performance was nominal during this report period.  Activities included a PMPCAL on 3/4 (DOY 063) and swapping to the B&C Gyros on 3/6 (DOY 065).

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

5.56

19.15

258.1

13.7

2

6.25

25.83

259.3

15.1

 

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

19,019,000,000

15,594,000,000

Distance from the Sun (Mi)

11,818,000,000

9,689,000,000

Distance from the Earth (Km)

19,018,000,000

15,661,000,000

Distance from the Earth (Mi)

11,817,000,000

9,732,000,000

Total Distance Traveled Since Launch (Km)

25,972,000,000

24,952,000,000

Total Distance Traveled Since Launch (Mi)

16,138,000,000

15,505,000,000

Velocity Relative to Sun  (Km/sec)

17.034

15.418

Velocity Relative to Sun  (Mi/hr)

38,104

34,489

Velocity Relative to Earth  (Km/sec)

19.054

25.578

Velocity Relative to Earth  (Mi/hr)

42,623

57,216

Round Trip Light Time (hh:mm:ss)

35:13:26

29:01:08