ISRO launches ‘spy’ satellite that can penetrate clouds
   Date :23-May-2019

By Vijay Karthik:
INDIA on Wednesday successfully put into orbit an earth observation satellite that can see through thick clouds and enhance the country’s surveillance capabilities in military and civilian sectors to keep an eye also on terror camps across the border in Pakistan. Dubbed as a ‘spy’ satellite, RISAT-2B (Radar Imaging Satellite-2B) will replace its predecessor RISAT-2 which has been actively used by India to monitor activities in terror camps across the border in Pakistan to thwart infiltration bids by terrorists. RISAT was successfully launched in 2009.
The RISAT-2B is equipped with a synthetic aperture radar that can take pictures of the earth during day and night, and also under cloudy conditions, said an official of the Indian Space Research Organisation(ISRO). With a mission life of five years, the satellite will also be used for military surveillance, the official said. As the 25-hour countdown which began on Tuesday concluded, ISRO’s trusted workhorse, the Polar Satellite Launch Vehicle (PSLV-C46) blasted off at 5.30 am from the first launch pad of the Satish Dhawan Space Centre here on its 48th mission, carrying the 615 kg satellite.
The satellite, which is meant for application in fields such as surveillance, agriculture, forestry and disaster management support, was successfully released into its orbit at about 15 minutes and 30 seconds after the lift-off. Commenting on the launch from the Mission Control Centre, ISRO Chairman K Sivan said the PSLV-C46 successfully injected RISAT-2B precisely in the designated orbit of 555 km, with an inclination of 37 degrees.
“This particular mission for PSLV is a very, very important mission. With this launch, PSLV lofts 50 tonnes to space by launching 354 satellites, including national, student and foreign satellites,” Sivan said. The ISRO chairman said the PSLV-C46 carried two important piggyback payloads, an indigenously developed processor and a low cost Inertial Navigation System. The two payloads -- Vikram processor and low-cost MEMS-based Inertial Navigation System (INS) -- were developed by Semi-Conductor Laboratory (SCL), Chandigarh and ISRO Inertial Systems Unit, Thiruvananthapuram respectively, he said. “It is going to revolutionise our future launch vehicle missions” he said. Sivan said the RISAT-2B is an advanced earth observation satellite. “In this satellite, another very complex new technology has flown. That is a 3.6 metre unfurlable radial rib antenna.
This is also going to be the technology of the future,” he added. Chandrayaan-2 launch to take place between July 9-16: ISRO: THE Indian Space Research Organisation is all set to embark on its most complex mission ever undertaken as thespace agency is gearing to launch Chandrayaan-2 between July 9 and 16. The landing on the moon is expected to be on September 6, ISRO chairman K Sivan said. “It is going to land at a particular location where nobody has gone before,” he added. Empty boat found 50 kms away from Sriharikota’: A BOAT was found under mischievous circumstances hardly 50 kms away from the space centre in Sriharikota before the launch of a satellite from PSLV-C46, police said. “Pannapudi Patooru is a village of fishermen near the sea coast in Vidavallur Mandal, Nellore district of Andhra Pradesh. On May 20, the fishermen were going to the sea. There they found an empty boat in the sea near their village. It was found hardly four-five km away from the shore.