Voyager Mission Operations Status Report # 2003-03-14, March 8 Through March 14, 2003 Command Transmission & Verification Operations Voyager 1 command operations consisted of a command loss timer reset on 03/11 [DOY 070/1555z]. The spacecraft received the command. There were no Voyager 2 command operations during the period. Sequence Generation Operations Continue sequence development of CCSL A047 and B119 mini-sequence. Data Return Operations Voyager 1 Data Processing and Operations: There were 79.1 hours of DSN scheduled support for Voyager 1 of which 2.5 hours were large aperture coverage. There was one real-time change made on 03/11 [DOY 070] when 1.3 hours of DSS-25 support was released to Ulysses. The total actual support was 77.8 hours of which 2.5 hours were large aperture coverage. There were no 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 AHELI1 cyclic for recording additional GS-4 data was enabled on November 17, 2001. A frame from this cyclic was recorded on March 8. The EDR backlog is 23 days. Voyager 2 Data Processing and Operations: There were 73.9 hours of DSN scheduled support for Voyager 2 of which 18.0 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 on March 12. The PRA receiver recovered from it's 84th POR event on March 11. It has been 393 days since the last POR event. Twenty-six frames of GS-4 data were played back on March 12. Approximately 96.95% of the data were recovered. The EDR backlog is 23 days. Flight System Performance Voyager 1 performance was nominal during this report period. Activity included an ASCAL on 3/12 (DOY 071). Voyager 2 performance was nominal during this report period. Activities included a PMPCAL on 3/11 (DOY 070), X-Band high power and DTR playback on 3/12 (DOY 071), and turning ON Gyros B/C on 3/13 (DOY 072). PROPELLANT/POWER CONSUMABLES STATUS AS OF 3-13-03/3-14-03 Spacecraft Consumption One Week (Gm) Propellant Remaining (Kg) Output (Watts) Margin (Watts) 1 9.12 30.23 305.0 28 2 9.82 32.11 306.4 37 RANGE, VELOCITY AND ROUND TRIP LIGHT TIME AS OF 3/14/03 Voyager 1 Voyager 2 Distance from the Sun (Km) 13,119,000,000 10,424,000,000 Distance from the Sun (Mi) 8,152,000,000 6,477,000,000 Distance from the Earth (Km) 13,096,000,000 10,479,000,000 Distance from the Earth (Mi) 8,137,000,000 6,511,000,000 Total Distance Traveled Since Launch (Km) 14,941,000,000 14,007,000,000 Total Distance Traveled Since Launch (Mi) 9,284,000,000 8,704,000,000 Velocity Relative to Sun (Km/sec) 17.212 15.690 Velocity Relative to Sun (Mi/hr) 38,501 35,096 Velocity Relative to Earth (Km/sec) 18.770 24.570 Velocity Relative to Earth (Mi/hr) 41,986 54,961 Round Trip Light Time (hh:mm:ss) 24:15:58 19:25:04