Launching
- Indian Space Research Organisation (ISRO) will launch the first of seven satellites that will provide the country with an independent navigation satellite capability on July 1,2013.
- A navigation satellite system uses a cluster of spacecraft that regularly transmit signals.Suitably equipped receivers can then use that data to work out their exact position.Vehicles, big and small, as well as aircraft and ships increasingly find their way using such navigation devices.
- The best known and currently the most widely used navigation satellite system is the U.S. Global Positioning System (GPS), which became operational two decades ago. Russia too offers global coverage with its Global Navigation Satellite System (GLONASS). Europe is establishing its own global system, Galileo. Although the full constellation will be ready only by 2019, it plans to begin some services with a reduced number of satellites by the end of next year.
- December 2012, China announced operational services from its BeiDou Navigation Satellite System over that country and surrounding areas. It intends to launch more satellites and expand the system for global coverage by 2020. China is developing Stations in Pakistan to improve the service there.By January 2014, Thailand will become the first country in 2014 to build a satellite station based on BeiDou, with both countries signing a 319 million dollar deal.BeiDou is the only satellite navigation
