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Effectiveness of GNSS disposal strategies

Effectiveness of GNSS disposal strategies
Effectiveness of GNSS disposal strategies
The management of the Global Navigation Satellite Systems (GNSS) and of the Medium Earth Orbit (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 Beidou constellations significantly added complexity to the system and calls for an adequate global view on the four constellations present in operation. The operation procedures, including maintenance and disposal practices, of the constellations currently deployed were analyzed in order to asses a proper reference simulation scenario. The complex dynamics of the MEO region with all the geopotential and lunisolar resonances was studied to better identify the proper end-of-life orbit for every proposed strategy, taking into account and, whenever possible, exploiting the orbital dynamics in this peculiar region of space. The possibility to exploit low thrust propulsion or non gravitational perturbations with passive de-orbiting devices (and a combination of the two) was analyzed, in view of possible applications in the design of the future generations of the constellations satellites. Several upgrades in the long-term evolution software SDM and DAMAGE were undertaken to properly handle the constellation simulations in every aspect from constellation maintenance to orbital dynamics. A thorough approach considering the full time evolving covariance matrix associated with every object was implemented in SDM to compute the collision risk and associated maneuver rate for the constellation satellites. Once the software upgrades will be completed, 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 the ESA/GSP Contract no. 4000107201/12/F/MOS.
space debris, orbital dynamics, global navigation satellite systems
0094-5765
292-302
Alessi, E.
e568e258-5551-44f8-857c-74a7dcbb088c
Rossi, A.
3139960d-02f0-444c-a7de-aa834513656a
Valsecchi, G.B.
d4bc15c0-d52d-406f-acbf-f352d73f6566
Anselmo, L.
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Pardini, C.
af51167b-8f38-4021-b0e2-e73cfff28972
Colombo, C.
595ced96-9494-40f2-9763-ad4a0f96bc86
Lewis, H.
e9048cd8-c188-49cb-8e2a-45f6b316336a
Daquin, J.
8c96c33c-6c27-4bd9-b83a-433d4b43b1c1
Deleflie, F.
264a06a2-c427-4644-95ee-f63353ebb99f
Vasile, M.
671ef6f1-2a30-42e6-b7e1-fc9de9521294
Zuiani, F.
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Merz, K.
de31f391-057b-4444-8128-d92ae7fd89ca
Alessi, E.
e568e258-5551-44f8-857c-74a7dcbb088c
Rossi, A.
3139960d-02f0-444c-a7de-aa834513656a
Valsecchi, G.B.
d4bc15c0-d52d-406f-acbf-f352d73f6566
Anselmo, L.
70474c3f-e140-4278-b038-b6732dd5625b
Pardini, C.
af51167b-8f38-4021-b0e2-e73cfff28972
Colombo, C.
595ced96-9494-40f2-9763-ad4a0f96bc86
Lewis, H.
e9048cd8-c188-49cb-8e2a-45f6b316336a
Daquin, J.
8c96c33c-6c27-4bd9-b83a-433d4b43b1c1
Deleflie, F.
264a06a2-c427-4644-95ee-f63353ebb99f
Vasile, M.
671ef6f1-2a30-42e6-b7e1-fc9de9521294
Zuiani, F.
6f846302-110f-4d53-87c1-20dc6556bc99
Merz, K.
de31f391-057b-4444-8128-d92ae7fd89ca

Alessi, E., Rossi, A., Valsecchi, G.B., Anselmo, L., Pardini, C., Colombo, C., Lewis, H., Daquin, J., Deleflie, F., Vasile, M., Zuiani, F. and Merz, K. (2014) Effectiveness of GNSS disposal strategies. Acta Astronautica, 99, 292-302. (doi:10.1016/j.actaastro.2014.03.009).

Record type: Article

Abstract

The management of the Global Navigation Satellite Systems (GNSS) and of the Medium Earth Orbit (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 Beidou constellations significantly added complexity to the system and calls for an adequate global view on the four constellations present in operation. The operation procedures, including maintenance and disposal practices, of the constellations currently deployed were analyzed in order to asses a proper reference simulation scenario. The complex dynamics of the MEO region with all the geopotential and lunisolar resonances was studied to better identify the proper end-of-life orbit for every proposed strategy, taking into account and, whenever possible, exploiting the orbital dynamics in this peculiar region of space. The possibility to exploit low thrust propulsion or non gravitational perturbations with passive de-orbiting devices (and a combination of the two) was analyzed, in view of possible applications in the design of the future generations of the constellations satellites. Several upgrades in the long-term evolution software SDM and DAMAGE were undertaken to properly handle the constellation simulations in every aspect from constellation maintenance to orbital dynamics. A thorough approach considering the full time evolving covariance matrix associated with every object was implemented in SDM to compute the collision risk and associated maneuver rate for the constellation satellites. Once the software upgrades will be completed, 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 the ESA/GSP Contract no. 4000107201/12/F/MOS.

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__soton.ac.uk_ude_PersonalFiles_Users_ra3n13_mydocuments_EPRINTS_LEWIS_Alessi_et_al_2014_AA_DOI10 1016_j actaastro 2014 03 009.pdf - Accepted Manuscript
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Accepted/In Press date: 9 March 2014
e-pub ahead of print date: 18 March 2014
Published date: June 2014
Keywords: space debris, orbital dynamics, global navigation satellite systems
Organisations: Aeronautics, Astronautics & Comp. Eng, Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 389355
URI: http://eprints.soton.ac.uk/id/eprint/389355
ISSN: 0094-5765
PURE UUID: e308804a-26a6-41bb-8728-231157713738
ORCID for C. Colombo: ORCID iD orcid.org/0000-0001-9636-9360

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Date deposited: 07 Mar 2016 09:17
Last modified: 03 Dec 2019 02:12

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