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Assimilation of lidar observations of aerosols for climate modelling and NWP

The objective of the Aeolus/EarthCARE Aerosol Assimilation Studies (A3S) project was to allow assimilation of the Aeolus L2A lidar backscatter data also paving the way for the assimilation of EarthCARE products. Since the Aeolus and EarthCARE missions were not yet launched, demonstration datasets based on model data (MOCAGE model for the aerosols and the IFS for the clouds) and a one-day dataset based on CALIPSO data (reprocessed at the UV wavelength and with the Aeolus orbit data) was created.

UK

13-051

European centre for...
Game theoretic analysis of space derbis remove dilemma

The increase of space debris means that active space debris removal becomes relevant. An active debris removal mission has a positive effect (or risk reduction) for all satellites in the same orbital band. This leads to a dilemma: each agency has an incentive to delay its actions and wait for others to respond. We model this scenario as a non-cooperative game between self-interested agents in which the agents are space agencies.

UK

15R01

Univ of Liverpool
General Relativity Experiment with Galileo satellites 5 and 6 (GREAT)

We report on a new test of the gravitational redshift and thus of local position invariance, an integral part of the Einstein equivalence principle, which is the foundation of general relativity and all metric theories of gravitation. We use data spanning 1008 days from two satellites of Galileo, Europe’s global satellite navigation system (GNSS), which were launched in 2014, but accidentally delivered on elliptic rather than circular orbits. The resulting modulation of the gravitational redshift of the onboard atomic clocks allows the redshift determination with high accuracy.

France

15/710

SYRTE
General Relativity Experiment with Galileo satellites 5 and 6 (GREAT)

The GREAT project provides an improved test of Einstein's theory of General Relativity by analyzing 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. The gravitational redshift describes the slowing down of the ticking rate that a clock experiences in a gravitational potential. This effect is a fundamental aspect of Einstein's theory of General Relativity.

Germany

15/711

ZARM
Reliable TT&C during superior solar conjunctions

The purpose of this study is the definition of a communication subsystem architecture (including both ground and space segments, as well as operational methods) that allows robust RF TT&C links during superior solar conjunction phases. The defined architecture shall ensure robust and reliable links in scintillation regimes (i.e. at low SEP angles) where TT&C links are nowadays degraded, leading to occasional link interruptions. Similarly, the defined architecture shall ensure that at even higher scintillation regimes (i.e.

Italy

13-028-a

University of Bologna
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
Benchmarking re-entry prediction uncertainties (Parallel b)

The project is dedicated to an in-depth study of the re-entry of the ESA's Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) satellite, for which a rich measurement data set is available up to the very end of its decay phase.

Italy

14-608-b

Space Dynamics Services
Concept Development of EVA Operations in EAC Neutral Buoyancy Facility for Extra-terrestrial Surface Explorations. (Moondive)

The International Space Station (ISS) is slowly approaching the end of its mission. The European Space Agency (ESA) and its international partners are considering new mission targets for the future of human space exploration in the post-ISS era. Highest ranked on the list of potential targets are a return to the Moon, Near-Earth Objects or asteroids, the moons of Mars (Phobos, Deimos) and, as the ultimate target the surface of Mars.

France

13-039

COMEX SA
Disaster risk reduction using innovative data exploitation methods and space assets

The difficult and costly access to reliable and quality Earth Observation (EO) satellite data has historically often limited the development of operational and sustainable services in multiple application domains (among which Disaster Risk Management) and, as a consequence, it has impaired the benefit that the society could have been receiving back as a return of huge multi annual investments in the space sector.

Italy

13-037

E-GEOS
Study to implement disaster risk reduction using innovative data exploitation methods and space assets

The inexorable progress made in the past years in the field of Earth Observation (EO) technologies offers a huge potential for innovation in Disaster Risk Reduction (DRR) applications. Interferometry processing of SAR data is one of the standard techniques for the detection, detailed characterisation and monitoring of surface motion caused by natural disasters.

Spain

13-037

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