NASA-ISRO Joint Satellite – NISAR

NISAR is an earth-observing satellite planned to be launched in 2024. It stands for NASA-ISRO Synthetic Aperture Radar. SAR creates two-dimensional and three-dimensional reconstructions of landscapes. NISAR is jointly developed by NASA and ISRO. Recently, NISAR left the Jet Propulsion Laboratory of NASA located in California to India.

Objectives of the NISAR

  • To map the earth
  • Monitor water, agriculture, and forest
  • Observe land and ice covers

Why is NISAR in news?

NISAR is a three-year mission. A part of the NISAR satellite is developed on US soil. This part payload is now being transported to India’s U R Rao Satellite center in Bengaluru from JPL in California.

Radar systems in NISAR

  • L – Band SAR: Designed and Created by JPL of NASA; Wavelength: 23 cm; Greater penetration to forests
  • S-Band SAR: Designed and created by ISRO; Wavelength: 12 cm; Used for heavy weather and bird detection


The NISAR will study the following:

  • Antarctic cryosphere: Cryosphere is the part of the earth where water is in a solid state
  • Ice masses will be monitored at a frequency of four to six times a month
  • Measure ecosystem disturbances
  • Natural hazards such as volcanoes, tsunamis, landslides, earthquakes, etc.
  • Ice sheet collapses




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