India’s Intent on Debris-Free
Space Missions - Explained
Home /India’s Intent on Debris-Free Space Missions
India intends Debris Free Space
Missions (DFSM). This initiative was declared by Shri
Somanath S., Chairman, ISRO/Secretary, DOS during the
inaugural opening plenary of the 42nd Annual Meet of
Inter-Agency Space Debris Co-ordination Committee (IADC)
held at Bengaluru on April 16, 2024. The details of this
initiative are provided in this note.
“This initiative aims to achieve
debris-free space missions by all Indian space actors,
governmental and non-governmental by 2030. India also
encourages all other state space actors to follow this
initiative for the long-term sustainability of Outer
Space”
The initiative will be brought to
the notice of the international community and other
State space actors to encourage them to join this
initiative. Department of Space to ensure space missions
with Zero Debris (Debris Free Space Missions – DFSM) by
all Indian Space actors, governmental and
non-governmental by 2030 through meticulous design and
execution of important guidelines.
These include taking the necessary
steps to
Avoid debris generation during the
operational life of satellites and launch vehicles as
well as during the post-mission disposal phase
Avoid on-orbit collision and
break-up of satellites and launch vehicles through
necessary failure mode studies, redundant systems and
mission design with high reliability,
Avoid intentional break-ups with
long-lived debris
Comply with the Post-mission
disposal (PMD) of spent orbital stages and satellites
with a success probability of more than 99%. Ensure
either controlled re-entry or de-orbiting to a lower
orbit with less than 5 years remaining orbital life for
rocket bodies and spacecraft at their end of operational
life.
This intent also ensures that by
2030 all satellite and launch vehicle missions will be
planned and operated taking into account
Special considerations for human
spaceflight safety – Considering 400 km +/- 30 km band
as the orbital band for human space missions by avoiding
minimum orbital transfers in this band by space missions
Ensuring trackability,
identifiability, and maneuverability of all satellites
throughout the mission phases
Recommending all Spacecraft mission
extensions only after critical consideration of system
health, safety and system readiness for post-mission
disposal
Coordination and data sharing, at
National and International levels, for safe and
sustainable operations
This intent will ensure the
necessary Capacity Building for space object tracking
and monitoring and also progress in concerted efforts
for Space Debris Research on innovative techniques for
the long-term sustainability of outer space activities.
The implementation of this DFSM
initiative will start by the beginning of 2025 by making
efforts at the mission planning and design level for
launch vehicle and spacecraft missions by selecting
orbital slots considering the collision threats in the
orbital bands, fuel budgeting for post-mission
disposals, mission trajectory planning with necessary
controlled re-entry or de-orbiting and also considering
the reliability aspects. Annual progress will be
evaluated on the implementation of the DFSM, the ISRO
system for safe and sustainable space operations
management (IS4OM) will be the nodal point in
implementing the DFSM with the support of other entities
of the Department of Space.
This initiative supports global
efforts for long-term sustainability and places India as
one of the space agencies that puts paramount importance
on the safety, security and sustainability of outer
space activities.
The long-term goal matches with the
theme “Join Together for a Safe, Secured and Sustainable
Space, Preserve the Common Heritage of Humankind for
Future Generations, Space for all & for all generations”
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