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Containment techniques to reduce spacecraft re-entry footprint

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France

T711-604SY

THALES ALENIA SPACE...
Tumbling Motion Assessment for Space Debris Objects
When Europe still had no access to clarify the attitude of lost spacecrafts in order to optimize recovery attempts and improve re-entry predictions, the precursor GSTP study on ?Attitude Motion Measurements and Modelling? activity paved the way for an independent European capacity in this field. In fact, for the first time in Europe, it was possible to join measurements of SLR, passive telescope and synthetic aperture radar to fit a dynamic attitude model of the given spacecraft.
Switzerland

GT17-152GR

University of Bern
A low-frequency and wide-band reflector antenna feed for future earth observation radiometers
Future low frequency radiometric earth observation (EO) missions, as an example the Earth Explorer 10 (EE10) candidate mission ?cryorad?, have the challenge of realising compact low-frequency and wideband reflector antenna feeds with a high RF performance (e.g. Sidelobes and feed aperture efficiency). The scientific potential for sea ice thickness, ice sheet and ice shelf temperature profiles investigations by low-frequency radiometers, was judged high by the ACEO in the case of cryorad.
Spain

T106-605EF

EOS Engineering
Control/structure co-design for planetary spacecraft with large flexible appendages

Classical control design techniques used for flexible spacecraft are based on single axis design approaches to control the rigid-body motion complemented by low-pass and notch filters to suppress the resonant peaks of the low-frequency flexible modes. These techniques are inherently relying on a priori knowledge of the structural flexible modes and introduce significant conservatism in the control and structural design, dictated by the need to separate the controller bandwidth from the flexible modes frequency.

United Kingdom

T205-121SA

AIRBUS DEFENCE AND SPACE...
De-risk assessment: Implementation of Sum-Int ADC IP-core into radiation-tolerant FPGA and performance evaluation

The main advantage of the proposed design of middle resolution class analog to digital conversion for space application is minimal demand for additional special function/parameters components (single middle class op-amp, resistors and capacitor are enough). All other required functionality, including analog signal comparator and reference switching, can be implemented in FPGA digital subsystem for middle resolution range applications. This makes the choice of space mature/proven components easier.

Czech Republic

G617-241TAfj

PIKRON, S.R.O.
Test automation exchange framework
Large aerospace projects require the collaboration from many partners, which often use their own development tools and frameworks. The validation of such projects relies heavily on test automation to increase the quality and reduce the costs. Unfortunately, the automated tests developed by each partner typically only address their specific activity and rely on specific tool. Over the past few years, several frameworks to support the automated testing and validation of the different parts of a space project have been produced and deployed.
Germany

GT1O-311GD

Etamax Space GmbH
Augmented and Virtual Reality supported Mission Operations
Augmented Reality (AR) and Virtual Reality (VR) provide new capabilities that have the potential to significantly improve the efficiency of the preparation (e.g. Simulation, planning domain) as well as the conduction of mission operations.
 
Germany

T709-605GD

TERMA GMBH
IOS Mission and Maturation Phase Proposal – In-Orbit Refuelling Assessment

During this Phase 0 maturation study, ASUK, with the support of Thales Alenia Space (TAS), Nammo, MDA and GMV, performed a programmatic, business and technical assessment of a future low-Earth orbit (LEO) refuelling mission. The mission concept proposes developing and demonstrating core technologies in a preliminary service offering to enable a commercial in-orbit refuelling service. Such a service will swiftly redefine how satellites are designed and operated, launching a dynamic and sustainable in-orbit ecosystem with significant potential.

United Kingdom

21-P-M-OPS-04

Astroscale
IOS Mission Proposal and Maturation Phase

In the frame of an In Orbit Servicing Maturation Phase (IOSMP) contract, this maturation study has been realised on the START-€ solution which is proposed to extend the lifetime of geostationary orbit (GEO) communication satellites. The START-€ servicer spacecraft will first demonstrate on a GEO communication satellite its ability to perform the critical operations related to its mission, before proceeding with several commercial life extension missions by capturing and taking the AOCS control of aged client spacecraft.

France

21-P-M-OPS-04

Telespazio
Visualising injector-coupled combustion instability in lox/H2 flames
A recently completed technology activity (ESA-IPL-PTM-sfe-st-LE-2015-510) attempted to systematically test the capability of numerical tools in predicting injection-coupled combustion instability in lres. This type of instability is caused by the coupling of the acoustic pressure field in the combustion chamber to acoustic resonance modes in the injectors. The results demonstrated unsatisfactory predictive capability due to challenges in accurately capturing key aspects in the modelling, such as the distribution of fluid properties throughout the injector-chamber system.
Germany

T419-605MP

DLR - German Aerospace...

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