PSLV launch countdown progresses smoothly (Lead)April 18th, 2011 - 10:25 pm ICT by IANS
Chennai, April 18 (IANS) The 54.5-hour countdown for the April 20 launch of the PSLV rocket, which will put India’s Resourcesat-2 and two other satellites into orbit, is progressing smoothly in Sriharikota, the rocket port in Andhra Pradesh.
“The countdown that started at 3.42 a.m. Monday is progressing smoothly,” S. Satish, director for publications and public relations at Indian Space Research Organisation (ISRO), told IANS.
Sriharikota is around 80 km from here.
According to Satish, the fuelling process of the rocket’s fourth stage was completed and the filling up of the propellant for the second stage is in progress.
The Polar Satellite Launch Vehicle (PSLV) is expected to blast off Wednesday at 10.12 a.m. and will carry a total payload of 1,404 kg.
This comprises three satellites - the 1,206 kg Resourcesat-2, the 92 kg joint Indo-Russian nano-satellite Youthsat for stellar and atmospheric studies, and a 106 kg microsatellite X-sat for imaging applications, built by the Singapore-based Nanyang Technological University.
The 44-metre tall PSLV is a four-stage rocket powered by solid and liquid propellants alternatively.
The first and third stage engines are fired by solid propellant while the second and fourth stages are fired by liquid propellant.
The Indian remote sensing satellite Resourcesat-2 was originally scheduled for launch in January this year but got postponed to February and later to April.
India has the largest constellation of remote sensing satellites in the world providing imagery in a variety of spatial resolutions, from better than a metre ranging up to 500 metres, and is a major player in vending such data in the global market.
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Tags: andhra pradesh, atmospheric studies, indian remote sensing satellite, indian space research, indian space research organisation, isro, launch vehicle, liquid propellant, liquid propellants, nanyang technological university, polar satellite, remote sensing satellites, rocket port, satish, second stage, solid propellant, spatial resolutions, stage engines, stage rocket, third stage