PARLIAMENT QUESTION: SPACE DEBRIS MANAGEMENT
1. At a Glance
- Space debris = defunct human-made objects in orbit (dead satellites, spent rocket bodies, fragmentation debris) that threaten operational assets via hypervelocity collision [S1].
- India's response is anchored in ISRO's IS4OM (ISRO System for Safe & Sustainable Space Operations Management) and the Debris Free Space Mission (DFSM) targeting zero debris by 2030 [S2].
- Relevant for GS-III (Sci-Tech, Space) and GS-II (international institutions — IADC, UNCOPUOS).
2. Why in the News
- Govt informed Parliament (Lok Sabha reply, 18 March 2026) that 129 trackable Indian-origin debris objects remain in orbit [S1].
- Renewed focus on DFSM 2030 commitment first announced at the 42nd IADC Annual Meet, Bengaluru, 16 April 2024 [S2].
3. Background & Evolution
- 1957 onwards — debris accumulation begins with the Space Age.
- 1993 — IADC (Inter-Agency Space Debris Coordination Committee) formed; ISRO is a founding member-class participant [S2].
- 2007 — UN COPUOS Space Debris Mitigation Guidelines adopted.
- 2022 — ISRO operationalises IS4OM at Bengaluru as nodal centre for SSA & debris mitigation [S2].
- April 2024 — DFSM announced by then-ISRO Chairman S. Somanath at 42nd IADC meet [S2].
- March 2026 — Parliament Q&A discloses 129 trackable Indian debris objects [S1].
4. Core Static Facts
- Implementing body: ISRO / Department of Space (under PMO) [S1].
- Nodal centre: IS4OM, Bengaluru [S2].
- Indian trackable debris (Mar 2026): 129 total [S1]
- Defunct satellites in LEO: 23; in GEO: 26
- Rocket bodies: PSLV 40, GSLV 4, LVM3 3
- Fragmentation debris from PSLV-C3 upper-stage break-up: 33 [S1].
- Annual publication: Indian Space Situational Assessment Report (ISSAR) [S1].
- DFSM target year: 2030; applies to all Indian actors — government & non-government [S1][S2].
- Post-mission disposal success rate mandated: >99%; controlled re-entry or de-orbit to <5 yr residual life [S2].
- International frameworks aligned with: IADC guidelines & UNCOPUOS Space Debris Mitigation Guidelines [S1].
5. Multi-Dimensional Analysis
Scientific / Technological - Kessler syndrome risk — cascading collisions in LEO; mitigated via failure-mode studies, redundancy, passivation of upper stages [S2]. - IS4OM uses conjunction assessment, re-entry analysis, orbital lifetime estimation [S2].
Strategic / Geopolitical - India remains exposed to debris from 2007 Chinese ASAT and 2021 Russian Nudol ASAT tests; ISRO's own 2019 Mission Shakti ASAT was conducted in low orbit (~283 km) for rapid decay [S2]. - DFSM positions India as a responsible spacefaring power amid NewSpace privatisation under IN-SPACe [S2].
Legal / Governance - No binding international treaty on debris; reliance on soft-law UNCOPUOS guidelines and Outer Space Treaty 1967 (liability under Liability Convention 1972) [S1]. - India's Indian Space Policy 2023 mandates debris-mitigation compliance for private players [S2].
Economic - Debris threatens commercial LEO constellations (Starlink, OneWeb-Eutelsat, India's planned constellations); insurance premiums rise. - Active Debris Removal (ADR) emerging as a sunrise commercial vertical.
Environmental - Atmospheric metal deposition from re-entries (aluminium oxide) — emerging stratospheric concern.
6. Recent Developments (last 12–18 months)
- 16 Apr 2024 — DFSM unveiled at 42nd IADC Bengaluru [S2].
- 2024 — PSLV-C37 upper stage re-entry demonstrated controlled disposal [S2].
- 18 Mar 2026 — Parliament reply quantifying 129 trackable Indian debris [S1].
7. Prelims Hooks
- DFSM target year — 2030 [S1].
- Nodal centre for debris mitigation — IS4OM (not NRSC, not SAC) [S2].
- Annual report — ISSAR released by ISRO [S1].
- 42nd IADC meet hosted by India at Bengaluru, April 2024 [S2].
- IADC = Inter-Agency Space Debris Coordination Committee (technical body, not UN) [S2].
- UNCOPUOS = UN Committee on Peaceful Uses of Outer Space, based in Vienna [S1].
- Indian-origin trackable debris (Mar 2026) — 129 [S1].
- Fragmentation source — PSLV-C3 break-up contributing 33 fragments [S1].
- Post-mission disposal success mandated by DFSM — >99% [S2].
- Mission Shakti ASAT — 27 March 2019, ~283 km altitude.
- Parent department: Department of Space, directly under the Prime Minister [S1].
- Liability for damage by space objects — Liability Convention 1972.
8. Mains Relevance
- GS-III — Awareness in space; achievements of Indians in Sci-Tech.
- GS-II — Important international institutions (UNCOPUOS, IADC).
- Possible stems: 1. "Examine India's preparedness to manage space debris in light of the Debris Free Space Mission 2030." (250 words) 2. "Soft-law instruments are inadequate to govern the growing space-debris crisis. Discuss." (150 words) 3. "Discuss the role of IS4OM in ensuring sustainable use of outer space by India." (150 words)
9. Related Topics to Study Next
- Indian Space Policy 2023 — regulatory framework enabling DFSM compliance.
- IN-SPACe & NewSpace India Ltd (NSIL) — private-sector debris obligations.
- Mission Shakti (2019) — ASAT and debris ethics.
- Outer Space Treaty 1967 & Liability Convention 1972 — legal regime.
- Kessler Syndrome — scientific principle behind cascade collisions.
- Gaganyaan & Bhartiya Antariksh Station (BAS-2035) — debris risk to crewed missions.
- NavIC / GSAT constellations — GEO debris implications.
- ITU spectrum & orbital slot allocation — adjacent governance issue.
10. Common Errors / Trap Areas
- IADC ≠ UN body — it is an inter-space-agency technical forum; UNCOPUOS is the UN body.
- IS4OM is under ISRO/DoS, not MoEFCC or DRDO.
- DFSM target year is 2030, not 2035 (latter is Bharatiya Antariksh Station).
- ISSAR is published annually by ISRO, not by MoD or MEA.
- PSLV-C3 fragmentation (33 fragments) is the largest single source of Indian debris — easy to confuse with PSLV-C37.
11. Sources
- [S1] PARLIAMENT QUESTION: SPACE DEBRIS MANAGEMENT (PIB, Dept. of Space, 18 Mar 2026) — https://www.pib.gov.in/PressReleasePage.aspx?PRID=2241770 — (tier: 1)
- [S2] PIB / ISRO communications on DFSM and 42nd IADC Meet, Bengaluru — https://www.pib.gov.in/PressReleaseDetail.aspx?PRID=2241770®=3&lang=1 — (tier: 1)