Voyager Mission Operations Status Report # 2014-01-24  Week Ending  January 24, 2014.

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 01/21 [DOY 021/1415z].  The spacecraft received the command.

 

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

 

Sequence Generation Operations

 

Continue sequence development of CCSL B163.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 36.9 hours of DSN scheduled support for Voyager 1 of which 36.9 hours were large aperture coverage. There were no real-time or schedule support changes made 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 January 19.  The third frame of GS-4 data was recorded on January 24.  The EDR backlog is 2 days.

 

Voyager 2 Data Processing and Operations:

 

There were 38.4 hours of DSN scheduled support for Voyager 2 of which 23.5 hours were large aperture coverage. One schedule change was made on 01/24 [DOY 024] when 1.2 hours of DSS-45 support was added.  The total actual support was 39.6 hours of which 23.5 hours were large aperture coverage.

 

There was one significant outage of 2.2 hours on 01/18 [DOY 018] due to rain at DSS-45 [DR C109852].

 

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 turning OFF the Scan Platform Supplemental Heater on 1/21 (DOY 021) and turning ON Gyros B&C on 1/24 (DOY 024)

 

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

5.10

19.56

258.5

28.5

2

5.87

25.87

259.7

30

 

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,958,000,000

15,539,000,000

Distance from the Sun (Mi)

11,780,000,000

9,656,000,000

Distance from the Earth (Km)

19,038,000,000

15,657,000,000

Distance from the Earth (Mi)

11,830,000,000

9,729,000,000

Total Distance Traveled Since Launch (Km)

25,894,000,000

24,848,000,000

Total Distance Traveled Since Launch (Mi)

16,090,000,000

15,440,000,000

Velocity Relative to Sun  (Km/sec)

17.035

15.419

Velocity Relative to Sun  (Mi/hr)

38,105

34,491

Velocity Relative to Earth  (Km/sec)

25.377

32.456

Velocity Relative to Earth  (Mi/hr)

56,766

72,601

Round Trip Light Time (hh:mm:ss)

35:15:42

29:00:42