GPS,Gudier and Tracer

Happening car robbery ever hit football player number one Brazil,Ronaldo.When it,Ronaldo exactly travel with BMW X5 car’s in a street on Rio de Jainero,Brazil.Suddenly a car block exact in the front’s.Then there robbers with using gun force Ronaldo to go down and bring flee BMW X5 is he new buy.Lucky,the car can to find in hour calculation on a street in the Rio de Jainero city because there GPS (Global Positioning System) in Ronaldo car.

In progrees country,GPS technology it certainly more to use at personal and corporate venicles for easily trace if happen something isn’t want like accident and lose.On beginning GPS technology for importance interest NavStar militery.Then on years 1980,American government permission it system to use for civilian.GPS can work in all wheather condition,wherever in all world slince.

GPS work with help GPS satellite.GPS satellite consist of 27 satellites (24 operating,3 for reserve) is place in the earth orbit by defence department AS.Satellite system it have heavy 800 kg with strech solar panel 5.7 meters,transit maximal power 50 watt.24 satellites is make it network orbit 19300 km high and a manner move constant,the orbit surround earth two time per day with fast 500 km/hour.Orbit from this satellites to make in such away so that whenever,wherever in the earth,on one location there 4 satellites is detection.

Power source GPS satellite using sun energy.Bedides it be found reserve battery for satellite can constant work when sun eclipse or when sun energy not stock.This satellite also with help small rocket is function as promotor for orbit satellite in street is exact.