Voyager Mission Operations Status Report # 2013-02-15,  Week Ending  February 15, 2013

 

Command Transmission & Verification Operations

 

Voyager 1 command operations consisted of the uplink of a Command Loss Timer Reset, CCSL A086  and AHELIO MRO on 02/10 [DOY 041/0330z].  The spacecraft received all commands sent and the CCSL was verified.

 

There were no command operations in support of Voyager 2 during the period due to DSS-43 downtime.

 

Sequence Generation Operations

 

 

Data Return Operations

 

Voyager 1 Data Processing and Operations:

 

There were 50.8 hours of DSN scheduled support for Voyager 1 of which 18.3 hours were large aperture coverage. There were no real-time or schedule support changes made during the period.

 

There was one significant outage of 0.9 hours on 02/14 [DOY 045] due to Sub Reflector problems with DSS-65 during the DSS-65/55 Array [DRs M107097, 098 and 099].

 

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 February 9.  The EDR backlog is 2 days.

 

 

Voyager 2 Data Processing and Operations:

 

There were 30.3 hours of DSN scheduled support for Voyager 2 of which 0 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.

 

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

 

 

Spacecraft

Consumption

One Week (Gm)

Propellant

Remaining (Kg)

Output

(Watts)

Margin

(Watts)

1

4.91

21.51

263.3

28

2

5.07

26.43

263.4

33

 

 

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

 

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

18,455,000,000

15,095,000,000

Distance from the Sun (Mi)

11,467,000,000

9,379,000,000

Distance from the Earth (Km)

18,494,000,000

15,193,000,000

Distance from the Earth (Mi)

11,492,000,000

9,440,000,000

Total Distance Traveled Since Launch (Km)

24,893,000,000

23,870,000,000

Total Distance Traveled Since Launch (Mi)

15,468,000,000

14,832,000,000

Velocity Relative to Sun  (Km/sec)

17.041

15.432

Velocity Relative to Sun  (Mi/hr)

38,120

34,520

Velocity Relative to Earth  (Km/sec)

21.112

28.653

Velocity Relative to Earth  (Mi/hr)

47,225

64,095

Round Trip Light Time (hh:mm:ss)

34:15:16

28:09:04