Voyager Mission Operations Status Report # 2014-01-10  Week Ending  January 10, 2014.

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset, CCSL A090, and AHELI2 SID MRO on 01/06 [DOY 006/0505z].  The spacecraft received all commands sent and the CCSL and MRO were verified.

 

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 01/06 [DOY 006/0332z].  The spacecraft received two of the seven commands sent.

 

Sequence Generation Operations

 

Continue sequence development of CCSL B163.

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 38.3 hours of DSN scheduled support for Voyager 1 of which 34.3 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.

 

There was one significant outage of 1.3 hours on 01/06 [DOY 006] due to rain at DSS-63 [DR M107651].

 

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 5.  The third frame of GS-4 data was recorded on January 9.  The EDR backlog is 2 days.

 

Voyager 2 Data Processing and Operations:

 

There were 39.6 hours of DSN scheduled support for Voyager 2 of which 38.2 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.

 

Voyager 2 performance was nominal during this report period.  Activity included a PMPCAL on 1/7 (DOY 007).

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

5.33

19.57

258.7

22.8

2

5.67

25.88

259.9

30.0

 

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,937,000,000

15,521,000,000

Distance from the Sun (Mi)

11,767,000,000

9,644,000,000

Distance from the Earth (Km)

19,037,000,000

15,642,000,000

Distance from the Earth (Mi)

11,829,000,000

9,719,000,000

Total Distance Traveled Since Launch (Km)

25,861,000,000

24,807,000,000

Total Distance Traveled Since Launch (Mi)

16,069,000,000

15,414,000,000

Velocity Relative to Sun  (Km/sec)

17.035

15.420

Velocity Relative to Sun  (Mi/hr)

38,106

34,493

Velocity Relative to Earth  (Km/sec)

28.502

34.749

Velocity Relative to Earth  (Mi/hr)

63,756

77,731

Round Trip Light Time (hh:mm:ss)

35:15:38

28:59:06