P.K.Educators

satellite navigation systems in use or various states of development include:

GLONASS – Russia's global navigation system. Fully operational worldwide.
Galileo – a global system being developed by the European Union and other partner countries, planned to be operational by 2014 (and fully deployed by 2019)
Beidou – People's Republic of China's regional system, currently limited to Asia and the West Pacific[136]
COMPASS – People's Republic of China's global system, planned to be operational by 2020[137][138]
IRNSS – India's regional navigation system, planned to be operational by 2014, covering India and Northern Indian Ocean[139]
QZSS – Japanese regional system covering Asia and Oceania