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Space Debris Deflection by Space-Based Laser

The study takes place in the context of the space environment remediation. Tackling the issue of space debris is becoming more and more critical as it becomes more dangerous for existing and future space missions. Solutions must be found to ensure the security of space missions security and a clean space environment. Laser pressure solutions are considered promising as they only using momentum transfer to perform debris manoeuvres to avoid collisions. This means that no additional debris is generated using this technique.

Italy

19-D-T-OPS-01

Thales Alenia Space
Preliminary design of on-orbit manufacturing of large antenna reflectors

This study aims to carry out the conceptual design of a large-parabolic-antenna reflector that is manufactured and assembled on-orbit.

Through its Clean Space initiative, ESA has been devoting an increasing amount of attention to the environmental impact of its activities, including its own operations as well as operations performed by European industry in the frame of ESA programmes. In its Technology Strategy, ESA identified 'Inverting Europe’s contribution to space debris by 2030' as one of the four technology development targets.

France

19-D-S-TEC-07

Airbus
Removal of the VESPA upper part

The objective of the Landmark ClearSpace-1 mission will be to demonstrate the complete value chain of active debris removal by removing an ESA-owned object (a VESPA upper part orbiting at an altitude of 500 km) by 2025.

Switzerland

19-D-S-TEC-03

ClearSpace
GreenSat

Due to the harsh nature of outer space, stringent requirements and performances are required from space systems. Thanks to evolving environmental awareness and the building up of a knowledge base at ESA, we are becoming more wary of the environmental impact of space activities on Earth. Through the GreenSat project, ESA wants to evolve from the assessment to reduction of environmental impact through redesigning an existing satellite mission. The project allows ESA to check the feasibility of implementing ecodesign in the development of space missions.

Belgium

15/033-a

Vito
GreenSat

Resulting from an ever increasing public pressure, the quest to be environmentally friendly is transforming the competitive landscape, as eco-friendly design turns into a new frontier of innovation. As a public sector intergovernmental organisation, ESA is committed to prioritizing environmental concerns in all its activities. Through its Clean Space initiative, it is pioneering an eco-friendly approach to space activities.

France

15/033-a

Thales Alenia Space
Environmental aspects of passive de-orbiting devices

The technical objective of this study is to understand the net effect of using deorbiting technologies like sails or tethers over the future debris population around the Earth. In principle, indeed, these attractive technologies will support the compliancy to post-mitigation disposal guidelines, for small missions. However, the increased cross section also increases the collision risk.

Italy

15/095

Politechnico di Milano
Impact of controlled and semi-controlled re-entry on Spacecraft design

There is an increased attention to safeguarding the Earth orbital environment, as reflected by the number of relevant regulations that are being set forward by national governments and international organisations. Among others, ESA has published a Space Debris Mitigation Policy for Agency Projects (ESA/ADMIN/IPOL(2014)2), supported by the corresponding ESA Space Debris Mitigation Compliance Verification Guidelines (ESSB-HB-U-002).

UK

15/718

Airbus Defence &...
Clean Sat Technology assessment and concurrent engineering in support of LEO platform evolutions

During the CleanSat concurrent engineering phase, Airbus, OHB, and TAS-I have cooperated within a consortium and have shared evenly the management of the different suppliers. Moreover, according to their priorities, each LSI had the possibility to be involved in the technical discussions with ESA, the other LSIs and the different BB suppliers. The concurrent engineering phase started in September 2015 and ended in April 2017 with a final presentation at ESTEC.

Italy

15/M61-c

Thales Alenia Space
Design for Removal: How to design S/C to support active debris removal if uncontrolled

In the future, satellites will have to demonstrate compliance with debris mitigation requirements, covering re-entry or parking graveyard orbits and passivation. Nevertheless, during the mission, a failure could occur without any possibility to manoeuvre the satellite and achieving its compliance to the Space Debris Mitigation requirements. Therefore to anticipate the need to use ADR for deorbiting (or reorbiting) the satellite, it is interesting to evaluate the implication of adapting the satellites and launcher upper stage to support a future ADR mission.

Italy

15/705-b

Thales Alenia Space

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