[1] A 1978 study evaluated the potential use of synthetic aperture radar to achieve 200 meter resolution.

[2] The spacecraft was to be launched from the Space Shuttle using a twin stage IUS in December 1984, and arrive in orbit May 1985.

[3] By 1981, the plan was for the spacecraft to launch in 1987 and to use aerobraking to circularize its orbit, whereupon it would be able to generate radar coverage of the entire planet over a period of 126 days.

Data transmission rates were 1 Mbit per second, matching the imaging and recording speed.

In 1983, it was replaced by a less ambitious mission called the Venus Radar Mapper, which was later renamed Magellan.