Wednesday, May 29, 2013
The Indian Regional Navigational Satellite System, IRNSS-1A, the first of the seven satellites of the IRNSS constellation, will be launched next month.
K Radhakrishnan, chairman of the Indian Space Research Organisation (Isro), said the IRNSS would be launched by the Polar Satellite Launch Vehicle from the Satish Dhawan Space Centre in Sriharikota on June 12 at 1:01 am.
The Indian Regional Navigational Satellite System (IRNSS) is an autonomous regional satellite navigation system being developed by the Indian Space Research Organisation (ISRO) which would be under complete control of the Indian government. The requirement of such a navigation system is driven by the fact that access to Global Navigation Satellite Systems, GPS, is not guaranteed in hostile situations. The IRNSS would provide two services, with the Standard Positioning Service open for civilian use and the Restricted Service, encrypted one, for authorised users (military).
The full constellation is planned to be realised in 2014. The IRNSS will help terrestrial, aerial and marine navigation services, along with disaster and fleet management.
These satellites are positioned in suitable geostationary and inclined geosynchronous orbits to provide regional coverage over India and its surrounding neighbours.
They are also equipped with high-precision atomic clocks, and continuously transmit navigation signals to users.
Tuesday, May 14, 2013
Moving towards completing its nuclear triad, India will activate the atomic reactor on-board the indigenous nuclear submarine INS Arihant in the "next two to three weeks" paving way for its operational deployment by the Navy soon.
"The nuclear reactor on-board the INS Arihant would be made critical (activated) in next two to three weeks," DRDO chief VK Saraswat told PTI here on Saturday.
INS Arihant has been undergoing trials at Navy's key submarine base in Vishakhapatnam and would be launched for sea trials after the nuclear reactor goes critical.
The DRDO has also readied a medium-range nuclear missile BO-5 for being deployed on the Arihant and its last developmental trial was held on January 27 off the coast of Vishakhapatnam.
The nuclear submarine will help India achieve the capability of going into high seas without the need to surface the vessel for long durations.
Conventional diesel-electric submarines have to come up on surface at regular intervals for charging the cells of the vessel.