IRS-P4 (Indian Remote Sensing Satellite) or Oceansat is the first indian satellite primarily built for Ocean applications. Kitsat (Korean Institute of Technology Satellite 3), renamed on orbit as Uribyol 3, was the first Korean satellite in true sense and was launched by an Indian PSLV-G (2) rocket in May 1999.
The Polar Satellite Launch Vehicle (PSLV) is an expendable medium-lift launch vehicle designed and operated by the Indian Space Research Organisation (ISRO). It was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into sun-synchronous orbits, a service that was, until the advent of the PSLV in 1993, commercially available only from Russia. PSLV can also launch small size satellites into Geostationary Transfer Orbit (GTO).
