ISRO Space Debris Plan: Debris Free Mission Targets LEO Risk

ISRO is tackling rising Low Earth Orbit debris from satellite mega-constellations through its Debris Free Space Mission and Active Debris Removal efforts, Dr. Jitendra Singh told Rajya Sabha.

ISRO Space Debris Mitigation Plan Targets Growing Risk From LEO Satellite Constellations

The Indian Space Research Organisation (ISRO) is closely tracking the proliferation of large Low Earth Orbit (LEO) satellite constellations and satellite internet constellations, which are driving an accumulation of space debris, and is taking steps toward mitigation and prevention, Minister of State Dr. Jitendra Singh told the Rajya Sabha on August 13, 2026. Dr. Singh, who holds the space portfolio along with Personnel, Public Grievances & Pensions and the Prime Minister’s Office, said ISRO’s Debris Free Space Mission will play a key role in safeguarding India’s space assets and limiting further debris generation through Active Debris Removal (ADR) and other measures.

Why LEO Mega-Constellations Are Raising Collision Risk

Dr. Singh explained that satellite constellations built for internet connectivity typically consist of a few thousand satellites, significantly increasing collision risk within the orbital regions around their respective orbital shells. While many large constellations carry autonomous collision-avoidance capabilities, some satellites fail on-orbit and lose the ability to manoeuvre out of the way of potential collisions.

He also flagged a harder problem: small, untrackable debris fragments that cannot be avoided through collision avoidance or adequately shielded against. A single impact from such debris can cause mission-ending damage to a functioning satellite, generating still more debris in the process. Given the sheer number of satellites now in orbit, Dr. Singh said the aggregate risk of further debris creation is significant, and warned that any fragmentation event — whether from a collision or an accidental break-up near a densely populated orbital shell — could escalate that risk further.

ISRO Has Been an IADC Member Since 1996

On India’s institutional role in space debris monitoring, Dr. Singh said the Inter-Agency Space Debris Coordination Committee (IADC), formed in 1993, is the most widely recognised body dealing with space debris monitoring and mitigation. ISRO, under the Department of Space, has been a member since 1996. He added that the United Nations Committee on the Peaceful Uses of Outer Space (UN-COPUOS) separately addresses space debris mitigation and long-term sustainability, including the safety of space operations.

India is represented across several international forums working on this issue, including the IADC, the UN Scientific and Technical Subcommittee’s Working Group on Long-Term Sustainability, and the Expert Group on Space Situational Awareness (SSA). IADC members regularly revise space debris mitigation guidelines as the orbital debris environment evolves, Dr. Singh said, with additional coordination happening through the IAA Space Debris Working Group and ISO Working Group 7.

IN-SPACe’s 2024 Guidelines Push Post-Mission Satellite Disposal

On end-of-life satellite disposal specifically, Dr. Singh said the Indian Space Policy mandates adoption of internationally recognised space debris mitigation guidelines, including end-of-life disposal measures, across the Indian space programme. ISRO’s Debris Free Space Mission is described as a proactive step toward implementing those guidelines.

He also pointed to the Norms, Guidelines and Procedures released by IN-SPACe in 2024, which encourage all Indian space actors to adopt adequate post-mission disposal measures, or to ensure their space assets have limited orbital life through natural orbital decay.

Space Situational Awareness Named a Core Pillar of Long-Term Sustainability

Dr. Singh identified Space Situational Awareness (SSA) as one of the most crucial enablers of long-term space sustainability, alongside operators meeting technical requirements such as manoeuvrability and trackability, fulfilling basic obligations like registration and sharing points of contact, and operating under a robust regulatory framework.

He said wider adoption of internationally recognised debris mitigation measures, combined with stronger compliance around the Debris Free Space Mission, will be key to protecting space assets going forward. Active Debris Removal was singled out as particularly important for curbing debris growth, with precursor activities already underway through on-orbit demonstrations that are expected to mature over time.

Dr. Singh closed by stressing that both international cooperation and indigenous capability-building matter here: data sharing across countries is essential for comprehensive Space Situational Awareness, while India will continue building self-reliant, indigenous space-object monitoring capacity alongside innovation and R&D to address emerging challenges. He also emphasized the need to raise awareness among space actors about the fragility of usable orbital regions in order to protect their long-term sustainability.