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GISAT-1A Launch: Resuming ISRO Operational Schedule After Hiatus

Source:Indian Express ↗

આ શા માટે મહત્વનું છે

This article highlights the resilience, recovery, and continuity of India's space program (ISRO) after an operational hiatus, underscoring the strategic importance of Earth observation satellites like GISAT-1A for national security and resource management.

સારાંશ

Following a launch vehicle setback in January that caused a seven-month operational hiatus, ISRO is set to launch the GISAT-1A satellite in September, marking a major resumption of its space mission schedule and earth observation capabilities.

મુખ્ય મુદ્દા

  • ISRO experienced a seven-month operational hiatus following a launch vehicle setback in January.
  • The upcoming launch of GISAT-1A in September is set to resume ISRO's operational launch schedule.
  • GISAT-1A is a crucial earth observation/geo-imaging satellite designed to provide real-time or near-real-time imaging of the country for various strategic and developmental applications.

મહત્વપૂર્ણ શબ્દો

GISAT-1A

An advanced Earth observation satellite developed by ISRO designed to provide near real-time, high-frequency imaging of the Indian subcontinent for disaster monitoring, agriculture, and security.

UPSC context

GS Paper III (Science & Technology - Space). Tests understanding of India's remote sensing capabilities and applications of space technology.

Source
ISRO

India's national space agency under the Department of Space, responsible for space exploration, satellite deployment, and advancing indigenous space launch vehicle technologies.

UPSC context

GS Paper III (Science & Technology - Space). Essential for questions on institutional frameworks, achievements of Indians in science, and indigenization.

Source

પ્રિલિમ્સ ટ્રેપ

GISAT-1A is a Low Earth Orbit satellite providing periodic revisits of the Indian landmass.

Aspirants often confuse GISAT-1A's geosynchronous orbit with Low Earth Orbit (LEO) satellites; GISAT-1A operates from ~36,000 km for continuous real-time coverage, not LEO.

સંલગ્ન સ્થિર ખ્યાલો

Science & Technology Space Technology

What are the key orbital differences between Low Earth Orbit (LEO) and Geostationary/Geosynchronous Earth Orbit (GEO)?

  • LEO Characteristics:: Altitude range, operating from 160 km to 2,000 km above the Earth's surface.
  • GEO Characteristics:: Fixed orbital position at ~36,000 km matching Earth's rotational speed for continuous regional monitoring.
  • Application Focus:: LEO offers high-resolution periodic swaths; GEO provides high-frequency continuous observation of a specific hemisphere or country.

આંતર-વિષય પેટર્ન

  • Geo-imaging satellites + Border security architecture

    GISAT-1A's continuous surveillance over the subcontinent directly supports border intelligence infrastructure alongside maritime domain awareness initiatives like SAGAR.

  • Remote Sensing Data + Disaster Management Act

    The shift toward high-altitude geostationary observation ties earth observation data utility directly into national disaster management frameworks under the NDMA.

Expect statement-based questions on the orbital mechanics difference between LEO earth observation satellites and geostationary GISAT missions.

સંલગ્ન PYQ · 1

સંલગ્ન PYQ · 1

  • 2018PrelimsGS1

    With reference to India's satellite launch vehicles, consider the following statements: 1. PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites. 2. Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth. 3. GSLV Mk III is a four-staged launch vehicle with the first and third stages using solid rocket motors; and the second and fourth stages using liquid rocket engines. Which of the statements given above is/are correct?