Voyager Mission Operations Status Report # 2013-06-07,  Week Ending  June 7, 2013

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 06/04 [DOY 155/2055z].  The spacecraft received the command.

 

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 86.7 hours of DSN scheduled support for Voyager 1 of which 14.7 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 June 1.  The third frame of GS-4 data was recorded on June 6.  The EDR backlog is 2 days.

 

Voyager 2 Data Processing and Operations:

 

There were 70.8 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.

 

Voyager 2 performance was nominal during this report period.  Activity included switching to B&C gyros on 6/7 (DOY 158).

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

4.96

20.64

261.0

26

2

5.35

26.25

262.3

16

 

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,619,000,000

15,240,000,000

Distance from the Sun (Mi)

11,569,000,000

9,470,000,000

Distance from the Earth (Km)

18,495,000,000

15,136,000,000

Distance from the Earth (Mi)

11,492,000,000

9,405,000,000

Total Distance Traveled Since Launch (Km)

25,118,000,000

24,106,000,000

Total Distance Traveled Since Launch (Mi)

15,608,000,000

14,479,000,000

Velocity Relative to Sun  (Km/sec)

17.039

15.428

Velocity Relative to Sun  (Mi/hr)

38,115

34,510

Velocity Relative to Earth  (Km/sec)

32.755

26.851

Velocity Relative to Earth  (Mi/hr)

73,271

60,064

Round Trip Light Time (hh:mm:ss)

34:15:26

28:02:44