Voyager Mission Operations Status Report # 2013-11-08  Week Ending  November 08, 2013

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 11/07 [DOY 311/1830z].  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 11/05 [DOY 309/1442z].  The spacecraft received two of the seven commands sent.

 

Sequence Generation Operations

 

No sequence development activity during this period.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 57.1 hours of DSN scheduled support for Voyager 1 of which 49.4 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 November 3.  The EDR backlog is 1 days.

 

Voyager 2 Data Processing and Operations:

 

There were 54.3 hours of DSN scheduled support for Voyager 2 of which 42.4 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.  Activities included LECP Observations on 11/3 (DOY 307), 11/5 (DOY 309), PMPCAL on 11/6 (DOY 310), and LECP Observation on 11/8 (DOY 312).

 

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

185.30*

19.877

259.4

11

2

4.46

25.98

260.6

31

                                                          *MAGROL 2013-305, LECP Observations 2013-307 & 309

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,845,000,000

15,439,000,000

Distance from the Sun (Mi)

11,710,000,000

9,594,000,000

Distance from the Earth (Km)

18,951,000,000

15,493,000,000

Distance from the Earth (Mi)

11,775,000,000

9,627,000,000

Total Distance Traveled Since Launch (Km)

25,670,000,000

24,596,000,000

Total Distance Traveled Since Launch (Mi)

15,950,000,000

15,283,000,000

Velocity Relative to Sun  (Km/sec)

17.036

15.422

Velocity Relative to Sun  (Mi/hr)

38,108

34,497

Velocity Relative to Earth  (Km/sec)

40.899

41.470

Velocity Relative to Earth  (Mi/hr)

91,487

92,764

Round Trip Light Time (hh:mm:ss)

35:06:10

28:42:40