The Indian Space Research Organisation (Isro) will launch Chandrayaan-I, India's maiden mission to the moon, in September. In an interview on the sidelights of a seminar here on Thursday, the chairman of Isro, Mr G. Madhavan Nair, said that the final tests have been on to launch the spacecraft to moon. The Chandrayaan-I will be launched atop a Polar Satellite Launch Vehicle (PSLV), India's workhorse rocket with a streak of nine consecutive flawless missions. The spacecraft would be loaded with six instruments including a high-resolution stereo camera capable of imaging objects about 16 feet in diameter. It will also carry near-infrared and X-ray spectrometers and a laser altimeter to determine the altitude of the lunar craft for spatial coverage of various instruments. These payloads will enable researchers to ascertain the composition and topography of the lunar surface.