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What is the orbital regime of the NISAR (NASA-ISRO Synthetic Aperture Radar) satellite?

AGEO

BHEO

CLEO

DSSO

Answer:

D. SSO

Read Explanation:

  • Orbital Classification: The NISAR satellite operates in a Sun-Synchronous Orbit (SSO), a near-polar orbit that allows the satellite to pass over any given point on Earth's surface at the same local solar time.

  • Technical Specifications: The satellite is positioned at an altitude of approximately 747 kilometers.

  • Collaboration: NISAR is a joint venture between NASA (National Aeronautics and Space Administration) and ISRO (Indian Space Research Organisation).

  • Instrumentation: It utilizes dual-frequency radar imaging, specifically L-band (provided by NASA) and S-band (provided by ISRO) Synthetic Aperture Radar (SAR).

  • Mission Objectives: The mission is designed to observe and measure changes in Earth's land and ice surfaces with high spatial and temporal resolution, aiding in the study of ecosystem disturbances, ice-sheet collapse, and natural hazards like earthquakes, tsunamis, and volcanic eruptions.


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