Articles on optical and radar astronomy all make the statement that when dealing with distances that great, the accuracy and completeness of surveys are questionable.
12.
The Jodrell Bank Observatory, an operation of the University of Manchester in Britain, was originally started by Bernard Lovell to be a radar astronomy facility.
13.
Project Diana marked the birth of radar astronomy later used to map Venus and other nearby planets, and was a necessary precursor to the US space program.
14.
Owned by the U . S . National Science Foundation and contractor operated, it is used primarily for radio astronomy, but equipment is available for radar astronomy.
15.
During its close approach of on 28 January 2014, it will only reach a magnitude of about 23 . has been observed in more detail using radar astronomy.
16.
Fourth, Arecibo's larger secondary platform also houses several " transmitters ", making it one of only two instruments in the world capable of radar astronomy.
17.
Sea-based radar systems, semi-active radar homing, active radar homing, weather radar, military aircraft, and radar astronomy rely on the Doppler effect to enhance performance.
18.
Relying upon high powered terrestrial radars ( of up to one MW ) radar astronomy is able to provide extremely accurate asteroid-Earth impacts, as illustrated by the object 99942 Apophis.
19.
A number of radio observatories were constructed during the following years; however, because of the additional cost and complexity of involving transmitters and associated receiving equipment, very few were dedicated to radar astronomy.
20.
In June 1995, Zaitsev was responsible for initiating the world's first intercontinental radar astronomy experiment; the radar groups participating in this experiment were led by Steven Ostro at JPL, Zaitsev in Yevpatoria, and Yasuhiro Koyama in Kashima, Japan.
