NASA Voyager Mission Operations Status Report Week Ending January 12, 2007

Command Transmission & Verification Operations

Voyager 1 command operations consisted of the uplink of a command loss timer reset on 01/11 [DOY 011/0445z]. The spacecraft received the command.

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 01/11 [DOY 011/0517z]. The commands were not radiated due to a transmitter failure at DSS-43 [DR C105459].

Sequence Generation Operations

Continue sequence development of CCSL B135.

Data Return Operations

Voyager 1 Data Processing and Operations:

There were 37.3 hours of DSN scheduled support for Voyager 1 of which 19.0 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. One frame of GS-4 data was recorded this week. A second frame of GS-4 data was recorded on day 6. The EDR backlog is 2 days.

Voyager 2 Data Processing and Operations:

There were 54.5 hours of DSN scheduled support for Voyager 2 of which 10.8 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. The PRA receiver recovered from its’ 98th POR event on January 12. 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 0n 1/9 (DOY 009).

PROPELLANT/POWER CONSUMABLES STATUS AS OF THIS REPORT

RANGE, VELOCITY AND ROUND TRIP LIGHT TIME AS OF 1/12/2007