Effectiveness of GNSS disposal strategies

Paper number

IAC-13,A6,2,4,x18913

Coauthor

Dr. Elisa Maria Alessi, IFAC-CNR, Italy

Coauthor

Dr. Alessandro Rossi, IFAC-CNR, Italy

Coauthor

Dr. Giovanni Valsecchi, INAF-IAPS, Italy

Coauthor

Dr. Luciano Anselmo, ISTI-CNR, Italy

Coauthor

Dr. Carmen Pardini, ISTI-CNR, Italy

Coauthor

Dr. Camilla Colombo, University of Southampton, Italy

Coauthor

Dr. Hugh G. Lewis, University of Southampton, United Kingdom

Coauthor

Dr. Florent Deleflie, IMCCE, France

Coauthor

Mr. Jerome Daquin, IMCCE, France

Coauthor

Dr. Massimiliano Vasile, University of Strathclyde, United Kingdom

Coauthor

Dr. Klaus Merz, European Space Agency (ESA), Germany

Year

2013

Abstract

The management of the Global Navigation Satellite Systems and of the MEO region as a whole is a subject that cannot be deferred, due to the growing exploitation and launch rate in that orbital regime.  The advent of the European Galileo and the Chinese Compass constellations significantly added complexity to the system and calls for an adequate global view on the four constellations presently in operation.  
Taking into account and, whenever possible, exploiting the orbital dynamics in this peculiar region of space, several different disposal scenarios (including de-orbiting toward reentry and re-orbiting in graveyard zones) for the spent upper stages and the satellites at end-of-life will be explored.  
The mitigation measures currently adopted are taken into account and will be compared with more aggressive scenarios.  The possibility to exploit non gravitational perturbations with passive de-orbiting devices will be analyzed as well.  Whenever possible, according to the current and foreseen performances of the space surveillance network, avoidance maneuvers between active satellites and debris will be considered.  The effectiveness of the different disposal strategies will be analyzed in terms of residual collision risk and avoidance maneuvers rate. 
This work was performed under an ESA/GSP Contract.

Abstract document

IAC-13,A6,2,4,x18913.brief.pdf

Manuscript document

IAC-13,A6,2,4,x18913.pdf (🔒 authorized access only).

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