Voyager Mission Operations Status Report # 2013-11-15  Week Ending  November 15, 2013

 

Command Transmission & Verification Operations

 

There were no command operations in support of Voyager 1 during the period.

 

Voyager 2 command operations consisted of the uplink of a Command Loss Timer Reset and CCSL B162 on 11/12 [DOY 316/0655z].  The spacecraft received all commands sent and the CCSL was verified.

 

Sequence Generation Operations

 

Start sequence development of CCSL A090.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 53.3 hours of DSN scheduled support for Voyager 1 of which 53.3 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.  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 November 13.  The EDR backlog is 1 day.

 

 

Voyager 2 Data Processing and Operations:

 

There were 54.2 hours of DSN scheduled support for Voyager 2 of which 43.8 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.

 

There was one significant outage of 0.8 hours on 11/11 [DOY 315] due to rain at DSS-45 [DR C109608]

 

 

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 11/11 (DOY 315) and an AHELI2 DTR playback followed by X-Band low power on 11/17 (DOY 317).

 

Voyager 2 performance was nominal during this report period.  Activity included a PMPCAL on 11/12 (DOY 317).

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

266.57*

19.61

259.3

22.7

2

6.20

25.97

260.5

31.8

                                                          *LECP Observations 2013-312, 313, 315, & 316

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,855,000,000

15,448,000,000

Distance from the Sun (Mi)

11,716,000,000

9,599,000,000

Distance from the Earth (Km)

18,967,000,000

15,515,000,000

Distance from the Earth (Mi)

11,786,000,000

9,641,000,000

Total Distance Traveled Since Launch (Km)

25,694,000,000

24,621,000,000

Total Distance Traveled Since Launch (Mi)

15,966,000,000

15,299,000,000

Velocity Relative to Sun  (Km/sec)

17.036

15.422

Velocity Relative to Sun  (Mi/hr)

38,107

34,497

Velocity Relative to Earth  (Km/sec)

39.859

41.104

Velocity Relative to Earth  (Mi/hr)

89,161

91,947

Round Trip Light Time (hh:mm:ss)

35:08:00

28:45:06