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Collocation of geostationary satellites using convex optimization

de Bruijn, F.J. and Choukroun, Daniel and Gill, E. and Theil, Stephan (2015) Collocation of geostationary satellites using convex optimization. IWSCFF 2015, 8-10 Juni 2015, Delft, Netherlands.

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A method is developed to calculate station-keeping maneuvers for a fleet of satellites collocated in a geostationary slot. The method is enabled by linear time-varying formulation of the dynamics in terms of non-singular orbital elements. A leader-follower control hierarchy is used, so that the motion of the follower satellites is controlled relative to the leader. Key objectives of the station-keeping problem are a minimization of propellant consumption, using a limited number of maneuvers, while guaranteeing safe separation between the satellites. The method is applied in a realistic simulation scenario, including orbit determination, actuation and modeling errors. The method is demonstrated to work for an inhomogeneous fleet of four satellites with a maneuver cycle of one week. It is then demonstrated that by reducing the maneuver cycle duration to one day, it is possible to collocate 16 satellites in a single slot, without penalties on propellant consumption.

Item URL in elib:https://elib.dlr.de/98453/
Document Type:Conference or Workshop Item (Speech)
Title:Collocation of geostationary satellites using convex optimization
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
de Bruijn, F.J.frederik.bruijn (at) dlr.deUNSPECIFIED
Choukroun, Danieldanielch (at) bgu.ac.ilUNSPECIFIED
Gill, E.e.k.a.gill (at) tudelft.nlUNSPECIFIED
Theil, Stephanstephan.theil (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:collocation, geostationary satellites, guidance, control
Event Title:IWSCFF 2015
Event Location:Delft, Netherlands
Event Type:international Conference, Workshop
Event Dates:8-10 Juni 2015
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Lageregelungstechnik / Formationsflug (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Deposited By: Bruijn, Frederik Johannes
Deposited On:10 Feb 2016 12:11
Last Modified:31 Jul 2019 19:55

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