Voyager Mission Operations Status Report # 2014-05-16  Week Ending  May 16, 2014.

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset on 05/13 [DOY 133/0035z].  The spacecraft received the command.

 

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

 

Sequence Generation Operations

 

No sequence development activity during this report period.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 64.2 hours of DSN scheduled support for Voyager 1 of which 61.5 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.  Twenty-four frames of data were recovered from a playback of GS-4 data on May 15.  The third frame of GS-4 data was recorded on May 10.  The EDR backlog is 2 days.

 

Voyager 2 Data Processing and Operations:

 

There were 60.7 hours of DSN scheduled support for Voyager 2 of which 34.1 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.  The EDR backlog is 1 day.

 

 

Flight System Performance

 

Voyager 1 performance was nominal during this report period.  Activities included LECP observation on 5/12 (DOY 132), and 5/14 (DOY 134) and a DTR PWS high rate playback on 5/15 (DOY 135).

 

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

142.19*

18.67

257.3

13.7

2

5.27

25.67

258.4

28.1

                                                                *LECP OBS 2014/132 & 2014/134

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

19,122,000,000

11,684,000,000

Distance from the Sun (Mi)

11,882,000,000

9,745,000,000

Distance from the Earth (Km)

19,006,000,000

15,613,000,000

Distance from the Earth (Mi)

11,810,000,000

9,702,000,000

Total Distance Traveled Since Launch (Km)

26,105,000,000

25,093,000,000

Total Distance Traveled Since Launch (Mi)

16,221,000,000

15,592,000,000

Velocity Relative to Sun  (Km/sec)

17.032

15.415

Velocity Relative to Sun  (Mi/hr)

38,100

34,483

Velocity Relative to Earth  (Km/sec)

27.985

23.986

Velocity Relative to Earth  (Mi/hr)

62,601

53,651

Round Trip Light Time (hh:mm:ss)

35:12:12

28:55:48