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Using mission analysis software GMAT to develop skills in astrodynamics

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Using mission analysis software GMAT to develop skills in astrodynamics. / Berthoud, L.; Walsh, J.

Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017. European Society for Engineering Education (SEFI), 2017. p. 1116-1123.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Berthoud, L & Walsh, J 2017, Using mission analysis software GMAT to develop skills in astrodynamics. in Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017. European Society for Engineering Education (SEFI), pp. 1116-1123, 45th Annual Conference of the European Society for Engineering Education, SEFI 2017, Angra do Heroismo, Terceira Island, Azores, Portugal, 18/09/17.

APA

Berthoud, L., & Walsh, J. (2017). Using mission analysis software GMAT to develop skills in astrodynamics. In Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017 (pp. 1116-1123). European Society for Engineering Education (SEFI).

Vancouver

Berthoud L, Walsh J. Using mission analysis software GMAT to develop skills in astrodynamics. In Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017. European Society for Engineering Education (SEFI). 2017. p. 1116-1123

Author

Berthoud, L. ; Walsh, J. / Using mission analysis software GMAT to develop skills in astrodynamics. Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017. European Society for Engineering Education (SEFI), 2017. pp. 1116-1123

Bibtex

@inproceedings{09ad8aaaf39a40c7a605ca6834ac92b6,
title = "Using mission analysis software GMAT to develop skills in astrodynamics",
abstract = "Learning about the geometry and kinematics of orbital motion (or 'astrodynamics') is challenging due to its 3D nature. To address this, the University of Bristol have developed 3D orbit visualization exercises using a free NASA tool called 'General Mission Analysis Tool' (GMAT). The aims are to develop skills in manipulation of orbits and to focus on areas subject to common misconceptions. The skills targeted include: varying orbital elements and observing the effect, interpreting ground tracks, exploring features of sun-synchronous, Molniya and geostationary orbits, adding pro and retrograde burns and seeing the effects, performing inclination changes and Hohmann transfers. Common misconceptions include: confusing the orbital elements, thinking that satellites move faster in their orbits with increasing altitude, thinking that geostationary satellites are not moving (relative to stars), forgetting that Earth rotates when considering ground tracks, thinking that a Hohmann transfer is composed of one burn only, thinking that for a chaser spacecraft to catch up with a target in orbit, it must accelerate. Feedback from students is discussed, along with proposals for further work to assess the extent to which misconceptions have been addressed. Overall, GMAT exercises offer a promising way to visualise orbits and improve conceptual understanding of astrodynamics.",
keywords = "3D visualization, Astrodynamics, GMAT, Orbit modelling",
author = "L. Berthoud and J. Walsh",
year = "2017",
month = "1",
day = "1",
language = "English",
pages = "1116--1123",
booktitle = "Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017",
publisher = "European Society for Engineering Education (SEFI)",

}

RIS - suitable for import to EndNote

TY - GEN

T1 - Using mission analysis software GMAT to develop skills in astrodynamics

AU - Berthoud, L.

AU - Walsh, J.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Learning about the geometry and kinematics of orbital motion (or 'astrodynamics') is challenging due to its 3D nature. To address this, the University of Bristol have developed 3D orbit visualization exercises using a free NASA tool called 'General Mission Analysis Tool' (GMAT). The aims are to develop skills in manipulation of orbits and to focus on areas subject to common misconceptions. The skills targeted include: varying orbital elements and observing the effect, interpreting ground tracks, exploring features of sun-synchronous, Molniya and geostationary orbits, adding pro and retrograde burns and seeing the effects, performing inclination changes and Hohmann transfers. Common misconceptions include: confusing the orbital elements, thinking that satellites move faster in their orbits with increasing altitude, thinking that geostationary satellites are not moving (relative to stars), forgetting that Earth rotates when considering ground tracks, thinking that a Hohmann transfer is composed of one burn only, thinking that for a chaser spacecraft to catch up with a target in orbit, it must accelerate. Feedback from students is discussed, along with proposals for further work to assess the extent to which misconceptions have been addressed. Overall, GMAT exercises offer a promising way to visualise orbits and improve conceptual understanding of astrodynamics.

AB - Learning about the geometry and kinematics of orbital motion (or 'astrodynamics') is challenging due to its 3D nature. To address this, the University of Bristol have developed 3D orbit visualization exercises using a free NASA tool called 'General Mission Analysis Tool' (GMAT). The aims are to develop skills in manipulation of orbits and to focus on areas subject to common misconceptions. The skills targeted include: varying orbital elements and observing the effect, interpreting ground tracks, exploring features of sun-synchronous, Molniya and geostationary orbits, adding pro and retrograde burns and seeing the effects, performing inclination changes and Hohmann transfers. Common misconceptions include: confusing the orbital elements, thinking that satellites move faster in their orbits with increasing altitude, thinking that geostationary satellites are not moving (relative to stars), forgetting that Earth rotates when considering ground tracks, thinking that a Hohmann transfer is composed of one burn only, thinking that for a chaser spacecraft to catch up with a target in orbit, it must accelerate. Feedback from students is discussed, along with proposals for further work to assess the extent to which misconceptions have been addressed. Overall, GMAT exercises offer a promising way to visualise orbits and improve conceptual understanding of astrodynamics.

KW - 3D visualization

KW - Astrodynamics

KW - GMAT

KW - Orbit modelling

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M3 - Conference contribution

SP - 1116

EP - 1123

BT - Proceedings of the 45th SEFI Annual Conference 2017 - Education Excellence for Sustainability, SEFI 2017

PB - European Society for Engineering Education (SEFI)

ER -