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Detection of microparticle impacts on spacecraft via their plasma effects

Microparticles are one of the most unknown components of the space environment. Their observation and investigation is complicated by their small size and their high velocity. When impacting on a spacecraft surface, a plasma cloud is generated by shock wave and surface ionization processes. This transient cloud of vaporized and ionized particle and surface material, referred to as impact plasma, rapidly expands to the meter scale within microseconds, thereby interacting with spacecraft surface components.

Germany

11-147

Fraunhofer Gesellschaft
Assessment of Satellite Constellations for Monitoring the Variations in Earth Gravity Field “SC4MGV”

The overall objective of this study is to assess constellations of two pairs of satellites for the retrieval of time-variable gravity field information for best quality scientific monitoring of mass distribution and transport in the Earth system. Before embarking on this study the geodetic community and space agencies have come to realize that weaknesses in current single-pair gravimetric satellite missions such as GRACE or GRACE-FO (to be launched in 2017) would significantly be alleviated by having a second GRACE-type pair in space simultaneously.

Germany

12.708

UNIV STUTTGART
Simplified models for spacecraft vulnerability assessments in early design phase

The space debris environment poses an ever-increasing risk to spacecraft particularly in low Earth orbits (LEO). Due to limitations of existing vulnerability models, increasing the overall survivability of a spacecraft by enhancing the protection of sensitive parts was not possible in the past. The aim of this study was to adopt and develop methodologies that allow increasing the survivability of a spacecraft by varying individual parameters, e.g. the position of sensitive components or the thickness of component casings.

Germany

30

Fraunhofer Gesellschaft
Verification Models for Advanced Human – Automation Interaction in Safety Critical Flight Operations

Within VASCO the formal verification methodology (FVM) for advanced human- automation interaction in safety critical environments based on models of the overall human-automation interaction (HAI) system has been developed.
The main objectives for this work are summarized below:
- Approach human-automation interaction from a holistic cooperative system

Germany

2013-15

OFFIS E.V.
Application of a Bit Torrent-like Protocol and Data Distribution Model to Mission Operations

Current evolution of IP networks has raised the opportunity to consider the use of well-established and mature Internet communication models for use in space missions. One of the most attractive of these models, particularly in terms of distributed and resilient data delivery, is the 'torrent'. A complete implementation of the CCSDS File Delivery Protocol (CFDP) [AD1] has been recently delivered to ESOC.

Germany

2013-20

Teletel

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