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Mahesh

05/11/22 02:05 AM IST

ISRO’s RISAT-2 makes uncontrolled reentry into earth’s atmosphere at predicted impact point

In News 
  •  RISAT-2, launched by Indian Space Research Organisation in 2009, made an uncontrolled re-entry into the Earth’s atmosphere at the predicted impact point.
RISAT-2 
  • RISAT-2 was launched on 20 April 2009 by PSLV-C12 launch vehicle. It weighted only about 300 kg.
  • RISAT-2 is India’s first "eye in the sky" which keep surveillance on the country’s borders as part of anti-infiltration and anti-terrorist operations.
  • The principal sensor of Risat-2, considered a ‘spy’ satellite, was an X-band synthetic-aperture radar from Israel Aerospace Industries.
  • Risat-2 was built more quickly following the 2008 Mumbai terror attacks due to delay with the indigenously developed C-band for Risat-1 satellite.
  • The satellite, which was India's first dedicated reconnaissance satellite, possessed day-night as well as all-weather monitoring capability.
  • It was also used to track hostile ships at sea that were deemed a military threat.
Significance 
  • Risat-2 provided beneficial payload data for over 13 years.
  • Since its injection, Risat-2’s radar payload services were provided for various space applications.
  • Risat-2 is a clear example of ISRO’s capability to carry out spacecraft orbital operations in an efficient and optimal way.
  • As Risat-2 re-entered within 13.5 years, it complied with all necessary international mitigation guidelines for space debris, showing the space agency’s commitment towards the long-term sustainability of outer space.
Source- Live Mint 

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