Consider the following statements regarding the NISAR (NASA-ISRO Synthetic Aperture Radar) mission: 1. It is a dual-frequency radar imaging satellite designed to observe Earth's land and ice-covered surfaces globally. 2. It will be placed in a geosynchronous orbit to provide continuous monitoring of the Indian subcontinent. 3. It is capable of penetrating clouds and dense forest canopies to measure changes in the Earth's surface. How many of the above statements are correct?
A
Only one
B
Only two
Correct Answer
C
All three
D
None
Explanation
NISAR is a joint Earth-observing mission by NASA and ISRO using advanced radar imaging, making Statement 1 correct. It uses L-band and S-band radars that can penetrate clouds and forest canopies to observe the surface regardless of weather, making Statement 3 correct. However, Statement 2 is incorrect because the satellite will be placed in a Low Earth Orbit (LEO), not a geosynchronous orbit.
Space TechnologyEarth Observation SatellitesNISARISRONASASynthetic Aperture RadarRadar Imaging