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257 results found
General Relativity Experiment with Galileo satellites 5 and 6 (GREAT)

The GREAT project provides an improved test of Einstein's theory of general telativity by analysing the relativistic gravitational redshift as observed in the clock data from GSAT-0201 and GSAT-0202. These satellites have been injected into highly eccentric orbits following a launch mishap, providing us with the unique chance to perform an important test of fundamental physics.

Germany

15/711

ZARM
End of Life operations for disposal of mega‐constellations

The objective of this activity was to understand the operational complexity of large mega-constellation systems, and the potential needs to operate these, including the complexity of collision avoidance manoeuvres (CAMs). This objective was achieved by:

Germany

15/052

Airbus Defence &...
Characterisation of particulates in the upper troposphere/lower stratosphere

The Process Exploration through Measurement of infrared and millimetre-wave Emitted Radiation (PREMIER) instrument was proposed to ESA within the framework of the 7th Earth Explorer Call. The instrument was designed to quantify dynamic, radiative, and chemical processes in the upper troposphere and lower stratosphere (UTLS) that control the global atmospheric composition.

Germany

13-055

Forschungszentrum Jülich
Assessment of a Methodology for the Certification of Safety GNC Critical Space Systems

The project is aimed at investigating and assessing methods for the certification of the design and development of Guidance, Navigation, and Control (GNC) systems for autonomous space missions.
The general objectives of the project are:
• To improve the certification processes (verification, validation, and assurance activities) of safety GNC critical space systems with the goal to reduce the cost, manpower and time for certification.
• To perform research on alternative approaches to reliability and certification to the current practices.

Germany

16/702

Fortiss
Future Concepts for Galileo Search-and-Rescue Space and Ground Segment (Parallel a)

MEOSAR is a system designed to locate emergency beacons anywhere on the Earth in order to coordinate rescue efforts for people, vehicles and facilities in distress. It works by evaluating the time and the frequency of the beacon signal upon arrival at the receiver. From these the relative distance and velocity of the sender can be calculated if sufficient data points have been collected. It is beneficial to receive the beacon on several different spacecraft to optimise the accuracy of the trace.

Germany

15/708-a

OHB System AG
Application of the FAIR facility to space radiation research

The radiation environment in space has severely adverse effects on humans, electronics and materials. The most challenging part of the environment for our understanding of the effects are the highly charged highly energetic (HZE) particles. This study looks at the possibilities FAIR offers for space radiation research. There are two main parts: first the open issues and needed research in space radiation involving heavy ions of high energy and second the requirements a facility for this research should meet checked against the possibilities at FAIR.

Germany

13-S-02

Fraunhofer Gesellschaft
Coastal Ocean Process Caractherisation in Indonesia

This Pilot Study aimed at improving the information on the state of the Indonesian marine environment that is gained by combining satellite data, maps of particularly vulnerable coastal areas and model simulations.

Germany

14-A-2-b

University of Hamburg
GNSS-R – Assessment of Requirements and Consolidation of Retrieval Algorithms (GARCA)

The main goals of the GARCA project are:

(1) To develop a tool capable to simulate GNSS-R data products for various instrument implementations using state-of-the-art techniques, including GEROS phase-A candidates, up to Level-1 observables and Level-2 geophysical data products, which will be freely and easily accessible to the interdisciplinary scientific GEROS community.

(2) To study the compliance of different GEROS implementations with respect to the Mission Requirements, and study the optimization of its geophysical data products.

Germany

14-M-6-1

German Research Center...
Autonomous Medical Monitoring and Diagnostic

Global plans for exploratory missions aim at extending the distances travelled by humans well beyond low Earth orbit and establishing permanent bases on the surface of Moon and Mars [1]. This will inevitably lead to increasing mission duration, radiation intensity, gravity levels and degree of confinement and isolation to which the crews will be exposed. In this extended space mission context, the astronauts should have the means to collect medical/physiological data in order to understand if their physiological conditions are in nominal levels.

Germany

13-046-a

CSEM SA
System impacts of propulsion Passivation

Space debris mitigation requirements specific to propulsion systems are scrutinized and compliance of OHB reference propulsion architectures is assessed. The risk of generating debris due to a failure in a propulsion system is assessed with a focus on the specific risk of a hypervelocity impact on a propulsion tank containing residuals.

The engineering activities, delta-qualifications or hardware development which can support the recommended propulsion passivation strategies are presented and prioritized.

Germany

13-060-a

OHB System AG

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