In contrast, the northern hemisphere's Ligeia Mare has depths exceeding 8 m, the maximum measurable by the radar instrument.
Magellan arrived at Venus in mid-1990 and mapped the entire surface of Venus using specialized radar instruments.
Still, the launch's radar instruments assured its crew that the machine ahead was by no means of an unusual size for a berserker.
The result is a more detailed image than would have been rendered with just one radar instrument.
Aircraft using the system, including most airliners, operate under rules that require them to follow instructions from controllers watching their progress on radar instruments.
An American-Italian radar instrument orbiting Mars has mapped the three-dimensional structure of layers beneath the surface in the planet's north polar region.
The radar instruments of the enemy were better than he had assumed.
The simplest is data availability - radar instruments used for interferometry commonly don't operate continuously, acquiring data only when programmed to do so.
Astronauts activated two radar instruments hours after entering space and began working two shifts to keep the equipment operating around the clock.
Used to bounce the radar signal back to the radar instrument for volume indication recording and piston level readings.