UPSC Notes

Space Debris Management

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

Space debris is a critical challenge for the sustainability of space exploration, impacting national assets, international cooperation, and the future of space-based services. It involves technological solutions, policy frameworks, and international law, making it highly relevant for UPSC's Science & Technology, International Relations, and Governance syllabi.

Space debris refers to defunct artificial objects in Earth orbit, including spent rocket stages, non-functional satellites, and fragments from collisions or explosions. It poses a significant threat to operational spacecraft, necessitating active management and mitigation strategies to ensure the long-term sustainability of space activities.

Phase IIStatic core

Facts & tables

Key facts

Collision Avoidance Manoeuvres (CAMs)

Executed by ISRO to protect active satellites from collision risks, especially in Low Earth Orbit (LEO).

Debris Free Space Mission (DFSM)

India's initiative announced in 2024, aiming for zero debris from all Indian actors (government and private) in the foreseeable future.

International Cooperation

India actively participates in international frameworks like IADC and UN-LTS for technical and policy deliberations on space debris mitigation.

Space Object Tracking Infrastructure

Includes the multi-object tracking radar (MOTR) at Sriharikota and the upcoming optical telescope at Hanle (Ladakh) under the NETRA project for enhanced Space Situational Awareness (SSA).

Space Situational Awareness (SSA)

Enhanced by tracking systems like the Multi-Object Tracking Radar (MOTR) at Sriharikota and the upcoming NETRA optical telescope at Hanle.

Reference table

Key International Bodies for Space Debris Management

OrganizationRole
Inter-Agency Debris Coordination Committee (IADC)International forum for space agencies to coordinate activities related to space debris mitigation and develop guidelines.
United Nations Working Group on Long Term Sustainability (UN-LTS)Develops guidelines for the long-term sustainability of outer space activities, including debris mitigation.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaEnvironmental Law & Policy
Conceptual areaGeopolitics & International Conflicts
Conceptual areaSpace Science & Exploration

Reference table

Institutions & roles

BodyRole
Indian National Space Promotion and Authorisation Centre (IN-SPACe)Formulates policy framework for liability
Indian Space Research Organisation (ISRO)Executes cams, contributes to international guidelines, implements dfsm, develops tracking infrastructure
IN-SPACeFormulates policy framework for state's liability towards third-party damages from indian space objects
Inter-Agency Debris Coordination Committee (IADC)International body for coordinating space debris mitigation activities and guidelines
United Nations Working Group on Long Term Sustainability (UN-LTS)Develops guidelines for the long-term sustainability of outer space activities
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Factual recall

Quick revision

  • Space debris poses a significant threat to operational satellites, especially in LEO.
  • ISRO regularly performs Collision Avoidance Manoeuvres (CAMs) to prevent collisions.
  • India's 'Debris Free Space Mission (DFSM)' aims for zero debris from Indian actors.
  • India actively participates in international forums like IADC and UN-LTS for debris mitigation.
  • The NETRA project (Network for Space Object Tracking and Analysis) enhances Space Situational Awareness (SSA).

High-confidence PYQs

Topic timeline

Environmental Law & PolicyGeopolitics & International ConflictsSpace Science & Exploration

PARLIAMENT QUESTION: COLLISION AVOIDANCE MANOEUVRES (CAMs) EXECUTED BY ISRO

05 Aug 2026 · Space debris management involves strategies like Collision Avoidance Manoeuvres (CAMs), international cooperation through bodies like IADC and UN-LTS, and national initiatives such as India's Debris Free Space Mission (DFSM) and enhanced Space Situational Awareness (SSA) capabilities (e.g., NETRA project) to ensure the safe and sustainable use of outer space.

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Related topics

Current topic

Space Debris Management

Practice writing on this topic

UPSC has asked 8 linked questions on Space Debris Management in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Space Debris Management

Practice official previous year questions asked by UPSC related to this concept.

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