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A Consumable-less Propulsion System Based on a Bare-Photovoltaic Tether

As proved in several missions, the Lorentz force acting on the electric current carried by a space electrodynamic tether (EDT) can be used to propel spacecraft without using propellant. State-of-the-art EDTs involve a bare tape for passive electron collection (anodic contact) and an active device, or a tether segment coated with a low-work-function material, for electron emission (cathodic contact).

Spain

ETD 2021-04

Universidad Carlos III...
Investigation of Active Detumbling Solutions for Debris Removal

The main objective of this study 'DETUMBLING – Investigation of Active Detumbling Solutions for Debris Removal' was to propose and investigate a contact-based de-tumbling strategy using a robotic arm. Realistic models were developed for the chaser with robotic-arm, target and composite systems. Specific GNC strategies were developed for the different phases of the mission: robotic-arm deployment synchronisation with the target de-tumbling the composite.

Spain

13-054

GMV
High performance avionics solution for advanced and complex GNC systems (HIPNOS)

The objective of this document is the presentation of the final synthesis of the activity “HIPNOS”, Development of a representative HW/SW solution for a high-performance processing platform for Active Debris Removal missions. Implement COTS-based solution as Demonstration of the activity.
HIPNOS includes trade-off study of processing technologies, processing space-grade and COTS devices, processing architectures, trade-off for computer vision algorithms, and demonstrator of the selected solution.
The scope and objectives of the activity are:

Spain

13-121

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

The population of non-operational objects in the space environment is raising, increasing concern about the safety of operations for current and future space activities. In this respect, space agencies and in particular ESA with its ESA/ADMIN/IPOL (2014) have established policies to mitigate space debris creation. Please refer to the compendium of space debris mitigation standards adopted by states and international organizations, [RD.5], for additional information. This basically implies that satellites in LEO and GEO shall perform an End Of Life (EOL) disposal with a reliability of 90%.

Spain

15/705-a

GMV

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