Voyager Mission Operations Status Report # 2012-11-02, Week Ending November 2, 2012

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of CRS CMD WORD 5 and a Command Loss Timer Reset on 10/27 [DOY 301/1700z]. The spacecraft received all commands sent and the CMD WORD was verified.

 

There were no command operations in support of Voyager 2 during the period.

 

Sequence Generation Operations

 

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 28.6 hours of DSN scheduled support for Voyager 1 of which 28.6 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.  One frame of GS-4 data was recorded this week.  A second frame of GS-4 data was recorded on October 27.  The EDR backlog is 1 days.

 

 

Voyager 2 Data Processing and Operations:

 

There were 33.4 hours of DSN scheduled support for Voyager 2 of which 30.3 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.  Activities included an ASCAL on 10/30 (DOY 304), LECP Observation on 10/31 (DOY 306) and 11/1 (DOY 306/307), and a MAGROL on 11/2 (DOY 307).

 

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

64.16*

22.18

263.5

15

2

5.22

26.55

264.6

30

                                                            *One ASCAL, 2012-304 & One LECP Observation 2012-306

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,301,000,000

14,959,000,000

Distance from the Sun (Mi)

11,372,000,000

9,295,000,000

Distance from the Earth (Km)

18,401,000,000

15,002,000,000

Distance from the Earth (Mi)

11,434,000,000

9,322,000,000

Total Distance Traveled Since Launch (Km)

24,604,000,000

23,539,000,000

Total Distance Traveled Since Launch (Mi)

15,288,000,000

14,624,000,000

Velocity Relative to Sun  (Km/sec)

17.043

15.436

Velocity Relative to Sun  (Mi/hr)

38,124

34,529

Velocity Relative to Earth  (Km/sec)

41.649

41.676

Velocity Relative to Earth  (Mi/hr)

93,165

93,227

Round Trip Light Time (hh:mm:ss)

34:05:04

27:48:04