Global Positioning System, History and Recent Evaluation
By defining simple of GPS as Global Positioning System is just a navigation system which servers to locate and point the position of any specific object which could be cell mobile, car, ship and airplane. more briefly about GPS, is an advance space based satellite navigation system run by the United States Military, has ability to provide position anywhere on or near the Earth, inform in all weather conditions, and technically there is an unobstructed line of sight to four or more GPS satellites. These services is free for civilian use, though the reality is people are paying tax dollar for it. Global Positioning System is also built in designed to provide critical capabilities for military, civil and commercial use.
Global Positioning System (GPS) is administrate and maintained by the United States government, Global Positioning System is the name which American defence department gave to it . Global Positioning System (GPS) is consider the first integrating ideas from several predecessors, including a number of classified engineering design studies from the 1960s, which after came and developed in 1973 to overcome the limitations of previous navigation systems. GPS was created and realized by the U.S. Department of Defense (DoD) and was originally run with 24 satellites. It became fully operational in 1995. Bradford Parkinson, Roger L. Easton, and Ivan A. Getting are credited with inventing it.
Here are some other interesting facts about the GPS satellites:
• The first GPS satellite was launched in 1978.
• A full constellation of 24 satellites was achieved in 1994.
• Each satellite is built to last about 10 years. Replacements are constantly being built and launched into orbit.
• A GPS satellite weighs approximately 2,000 pounds and is about 17 feet across with the solar panels extended.
• Transmitter power is only 50 watts or less.
Cell phone, Mobile is the most excessive civil source to utilize the GPS, after then internet provides another facility to experiencing of Global positioning system. There are sites available at internet which offer this feature for free, it’s heavily used for searching maps, satellite view and locate or find specific address via maps. These features now came up with built in with mobiles , cell phones and smart phones.