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NASA Voyager Operations Status Report #2006-01-06,áWeek EndingáJanuaryá 6, 2006

Status Report From: Jet Propulsion Laboratory
Posted: Wednesday, March 1, 2006

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Command Transmission & Verification Operations

There were no Voyager 1 command operations during the period.

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 01/05 [DOY 005/2102z].  The spacecraft received three of the seven commands sent.

Sequence Generation Operations

Development of CCSL B131 continues.

Data Return Operations

Voyager 1 Data Processing and Operations:

There were 92.0 hours of DSN scheduled support for Voyager 1 of which 49.7 hours were large aperture coverage. One real-time change occurred on 01/04 [DOY 004] when 2.5 hours of DSS-15 support was released to support MRO.á The total actual support for the period was 89.5 hours of which 49.7 hours were large aperture coverage.á There were no significant outages.

Science instrument performance was nominal for all activities during this period.á One frame of GS-4 data was recorded this week.á A second frame of GS-4 data was recorded on day 365.á The EDR backlog is 23 days.

Voyager 2 Data Processing and Operations:

There were 80.4 hours of DSN scheduled support for Voyager 2 of which 49.5 hours were large aperture coverage. Three real-time changes were made during the period.á The first two changes released 0.8 hours and 3.8 hours of DSS-43 support to MRO on 01/04 [DOY 004] and 01/05 [DOY 005] respectively.á The third real-time change occurred on 01/05 [DOY 005] when DSS-45 supported 5.0 hours in place of DSS-43 down due to antenna problems [DR 104673].á The total actual support for the period was 75.8 hours of which 39.9 hours were large aperture coverage.á There were no significant outages.

Science instrument performance was nominal for all activities during this period.á One frame of GS-4 data was recorded this week.á The EDR backlog is 22 days.

Flight System Performance

Voyager 1 performance was nominal during this report period.á Activity included a PMPCAL on ╝ (DOY 004).

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

6.66

28.52

292.3

35

2

7.60

30.39

293.8

39

RANGE, VELOCITY AND ROUND TRIP LIGHT TIME AS OF 1/6/2006

 

Voyager 1

Voyager 2

Distance from the Sun (Km)

14,641,000,000

11,743,000,000

Distance from the Sun (Mi)

9,097,000,000

7,297,000,000

Distance from the Earth (Km)

14,743,000,000

11,869,000,000

Distance from the Earth (Mi)

9,161,000,000

7,375,000,000

Total Distance Traveled Since Launch (Km)

17,484,000,000

16,497,000,000

Total Distance Traveled Since Launch (Mi)

10,864,000,000

10,251,000,000

Velocity Relative to Suná (Km/sec)

17.159

15.606

Velocity Relative to Suná (Mi/hr)

38,382

34,909

Velocity Relative to Earthá (Km/sec)

29.440

35.470

Velocity Relative to Earthá (Mi/hr)

65,856

79,344

Round Trip Light Time (hh:mm:ss)

27:18:30

21:59:40

// end //

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