The Indian Space Research Organisation(Isro) on Saturday launched its fourth navigational satellite IRNSS-1D from Sriharikota in Andhra Pradesh, taking it closer to having its own Global Positional System (GPS) like that of the US.
The satellite is the one among the seven IRNSS constellation of satellites slated to be launched to provide navigational services to the region. It has been placed in the geosynchronous orbit to provide navigation, tracking and mapping services.
Exactly at 5:19pm, the rocket - Polar Satellite Launch Vehicle- (PSLV-C-27) standing about 44 metres tall and weighing around 320 tonne, blasted off from the second launch pad at the Satish Dhawan Space Centre.
IRNSS-1D is the fourth of the seven satellites in the Indian Regional Navigational Satellite System (IRNSS) series after IRNSS-1A, IRNSS-1B and IRNSS-IC.
The fifth of the IRNSS series is slated to be launched in August this year. Once five of them are in the constellation, India can have its own GPS like that of the US.
The system would provide two types of services — Standard Positioning Service, which is provided to all users and Restricted Service, which is an encrypted service provided only to authorised users.
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