Bhattarai, S., Ziebart, M., Allgeier, S., Grey, S. , Springer, T., Harrison, D. and Li, Z. (2019) Demonstrating developments in high-fidelity analytical radiation force modelling methods for spacecraft with a new model for GPS IIR/IIR-M. Journal of Geodesy, 93(9), pp. 1515-1528. (doi: 10.1007/s00190-019-01265-7)
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Abstract
This paper presents recently developed strategies for high-fidelity, analytical radiation force modelling for spacecraft. The performance of these modelling strategies is assessed using a new model for the Global Positioning System Block IIR and IIR-M spacecraft. The statistics of various orbit model parameters in a full orbit estimation process that uses tracking data from 100 stations are examined. Over the full year of 2016, considering all Block IIR and IIR-M satellites on orbit, introducing University College London’s grid-based model into the orbit determination process reduces mean 3-d orbit overlap values by 9% and the noise about the mean orbit overlap value by 4%, when comparing against orbits estimated using a simpler box-wing model of the spacecraft. Comparing with orbits produced using the extended Empirical CODE Orbit Model, we see decreases of 4% and 3% in the mean and the noise about the mean of the 3-d orbit overlap statistics, respectively. In orbit predictions over 14-day intervals, over the first day, we see smaller root-mean-square errors in the along-track and cross-track directions, but slightly larger errors in the radial direction. Over the 14th day, we see smaller errors in the radial and cross-track directions, but slightly larger errors in the along-track direction.
Item Type: | Articles |
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Additional Information: | This work is supported financially by the UK Natural Environment Research Council (NE/K010816/1; Grant No. 157630). |
Keywords: | Solar radiation pressure, analytical force models, GPS, orbit determination, orbit prediction. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Grey, Dr Stuart |
Authors: | Bhattarai, S., Ziebart, M., Allgeier, S., Grey, S., Springer, T., Harrison, D., and Li, Z. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | Journal of Geodesy |
Publisher: | Springer |
ISSN: | 0949-7714 |
ISSN (Online): | 1432-1394 |
Published Online: | 10 June 2019 |
Copyright Holders: | Copyright © 2019 The Authors |
First Published: | First published in Journal of Geodesy 93(9): 1515-1528 |
Publisher Policy: | Reproduced under a Creative Commons License |
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