Imperial College London
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DrDavideAmato

Faculty of Engineering, Department of Aeronautics

Lecturer in Spacecraft Engineering
 
 
 
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Contact

 

+44 (0)20 7594 1188d.amato CV

 
 
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Location

 

CAGB 336City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Amato:2016,
author = {Amato, D and Bombardelli, C and Baù, G},
title = {Efficient numerical propagation of planetary close encounters with regularized element methods},
url = {http://hdl.handle.net/10044/1/90971},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - Close encounters with major Solar System bodies may bring about a strong amplification of numerical error during inter-planetary orbit propagation.  In this work, we reduce global numerical error by integrating regularized equations of motion instead of the classical Newtonian equations in Cartesian coordinates.  The integration performance of several sets ofregularized  equations  is  assessed  from  large-scale  numeri-cal propagations of close encounters in the Sun-Earth planar CR3BP.  An  essential  device  consists  in  switching  between primary  bodies  during  the  propagation,  which  effectively decomposes  a  strongly-perturbed  heliocentric  problem  into two  weakly-perturbed  ones;  this  propagation  approach  has been  dubbed Online  Trajectory  Matching (OTM).  Through this  simple  expedient,  regularized  equations  describing  the evolution  of  non-classical  orbital  elements  achieve  excellent  performances  compared  to  Newtonian  equations,  even when employing sophisticated adaptive numerical schemes.Further improvements might be expected by carefully selecting the location of the switch of primary bodies during the propagation.
AU  - Amato,D
AU  - Bombardelli,C
AU  - Baù,G
PY  - 2016///
TI  - Efficient numerical propagation of planetary close encounters with regularized element methods
UR  - http://hdl.handle.net/10044/1/90971
ER  -
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