Examkin

Question

Difficulty: HardSpace Technology and Astronomy

Match the following Indian Space Research Organisation (ISRO) scientific missions listed in List-I with their primary scientific objectives and operational characteristics listed in List-II:

  • XPoSATMeasurement of the polarization of X-ray emissions from intense astronomical sources in low Earth orbit
  • Aditya-L1Continuous observation of the solar corona and solar wind dynamics from a halo orbit around the Sun-Earth Lagrangian point L1
  • NISARDual-frequency radar imaging of global land surface deformation and cryospheric dynamics
  • AstroSatSimultaneous multi-wavelength astronomy across optical, ultraviolet, and X-ray spectral bands

Answer

XPoSAT matches with X-ray polarization measurement in low Earth orbit; Aditya-L1 matches with solar corona observation from the Sun-Earth L1 halo orbit; NISAR matches with dual-frequency radar imaging of land and ice surfaces; AstroSat matches with multi-wavelength astronomical observations across optical, UV, and X-ray bands.
Each ISRO scientific mission is correctly paired with its specific objective and operational domain: XPoSAT performs polarimetric X-ray study of cosmic sources; Aditya-L1 monitors the Sun from the L1 halo orbit; NISAR performs dual-frequency radar Earth imaging; and AstroSat operates as a multi-wavelength space observatory.

Step-by-Step Solution

1
Identify the primary science payload objective of XPoSAT
XPoSAT focuses on polarimetric study of cosmic X-ray sources, matching with measuring X-ray emission polarization.
The POLIX payload on XPoSAT specifically measures polarization parameters in the 8-30 keV energy band.
2
Identify the orbital placement and research domain of Aditya-L1
Aditya-L1 is placed at the L1 Lagrangian point for uninterrupted solar observation.
Lagrangian Point 1 provides an unobstructed view of the Sun without earth eclipses or occultations.
3
Identify the technological feature of NISAR
NISAR employs dual-frequency (L-band and S-band) SAR technology for Earth observation.
NASA contributes the L-band SAR and ISRO contributes the S-band SAR for surface deformation tracking.
4
Identify the primary observational capability of AstroSat
AstroSat provides multi-wavelength coverage across UV, optical, and X-ray regimes.
AstroSat carries multiple payloads operating simultaneously across different wavebands.

Key Concept

ISRO Space Exploration and Astronomy Missions
Rate this question

Topics

Space Technology and Astronomy

More questions from this topic