Novel Concepts for the Removal of Space Debris

Paper number

IAC-10,A6,4,15,x6296

Author

Mr. Ulrich Knirsch, EADS Astrium, Germany

Year

2010

Abstract

The active removal of large scale objects, such as defunct satellites, clearly plays a major role in combating space debris.  However, it is hampered by the challenges of maneuvering, the risk of collision and the absence of standardized attachment points.  This paper proposes an attachment module "TENTACLE" to alleviate all three problems.

TENTACLE consists of a wire coil of several meters in length.  Stowed in a dedicated module, it is to be attached to the outside of any future satellite.  One end is connected to the host satellite, while the other attaches to an end mass, identified by color markings and/or an array of retro-reflectors. 
 
Furnished with a small standalone power supply, TENTACLE remains active even if the host satellite becomes defunct.  An approaching tow spacecraft can trigger TENTACLE remotely.  The adapter is ejected, the wire uncoils.  Alternatively, TENTACLE triggers autonomously in case its power supply fails (i.e. fail safe).

The mass at the end of the wire increases the moment of inertia of the satellite and thus reduces its rotational rate.  The tow spacecraft can now easily capture the wire and attach - without threat of collision with appendages of the defunct satellite.  Upon sufficient orbit lowering, the tow spacecraft severs the wire and ascends for another mission.

Abstract document

IAC-10,A6,4,15,x6296.brief.pdf

Manuscript document

IAC-10,A6,4,15,x6296.pdf (🔒 authorized access only).

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