These experimenter-supplied, planetary radio astronomy data are on binary magnetic tape created on an IBM 360 computer. Each 32,484-byte physical block contains forty 812-byte logical records. A data record consists of the date in year, month and day; spacecraft event time in elapsed milliseconds; telemetry mode (cruise mode data rates in frame completion times from 48s to 2880 s); and the averaged received power for all 199 frequencies in descending order over the frame (in millibels) for 70 low-frequency and 128 high-frequency channels. There is an extra frequency available in the high band corresponding to 40,550 kHz (although it is usually set to zero).