Meaning of TRANSIT in English
any of the first series of U.S. navigation satellites. Launched by the U.S. Navy in 196061, the Transit satellites were developed to provide an accurate, all-weather navigational aid for seagoing vessels (including submarines) and aircraft. The system was so designed that any such craft could pinpoint its position by using a computer specially programmed to translate coded radio signals beamed from the satellites into latitude and longitude. Transit 1-B, the first in the series, was placed in a north-south polar orbit on April 13, 1960. It had only a 40-month life-span, however. Three advanced Transit models equipped with nuclear-power generators were launched from June 22, 1960, to Nov. 15, 1961.
Britannica English vocabulary. Английский словарь Британика. 2012