Coupled orbit-attitude dynamics of a captured asteroid during swing-bys

Daniel Garcia Yarnoz, Colin McInnes

Research output: Contribution to conferencePaper

Abstract

The rotational state and structure of minor bodies undergo major disruptions during very close encounters with massive bodies. This paper proposes the use of tidal interaction during a swing-by to modify or manipulate the spin and possibly the structure of asteroids, primarily during capture. The possibility of de-spinning, spinning-up or controlled break-up of a captured asteroid is considered. Three simple planar models are used to study the orbit-attitude interactions: the coupled dynamics of an ideal mass-point dumbbell, a simplified decoupled rigid body rotation dynamics, and a circular orbit binary. The evolution of the rotational state and structure of the asteroids is studied for the hypothetical cases of a single lunar or Earth swing-by prior to capture. The final conditions are shown to be highly dependent on the initial rotational state, the distance to the swing-by body, and, most importantly, the relative attitude of the asteroid to the local vertical at pericentre.
LanguageEnglish
PagesIAC-14-C1.2.13
Number of pages10
Publication statusPublished - 29 Sep 2014
Event65th International Astronautical Congress (IAC 2014) - Metro Toronto Convention Centre, Toronto, Canada
Duration: 29 Sep 20143 Oct 2014

Conference

Conference65th International Astronautical Congress (IAC 2014)
CountryCanada
CityToronto
Period29/09/143/10/14

Fingerprint

Asteroids
Orbits
Earth (planet)

Keywords

  • orbit determination
  • asteroid capture
  • coupled dynamics
  • flybys

Cite this

Garcia Yarnoz, D., & McInnes, C. (2014). Coupled orbit-attitude dynamics of a captured asteroid during swing-bys. IAC-14-C1.2.13. Paper presented at 65th International Astronautical Congress (IAC 2014), Toronto, Canada.
Garcia Yarnoz, Daniel ; McInnes, Colin. / Coupled orbit-attitude dynamics of a captured asteroid during swing-bys. Paper presented at 65th International Astronautical Congress (IAC 2014), Toronto, Canada.10 p.
@conference{5ebaa9b77dcc4f449d40b57a0c26f6b4,
title = "Coupled orbit-attitude dynamics of a captured asteroid during swing-bys",
abstract = "The rotational state and structure of minor bodies undergo major disruptions during very close encounters with massive bodies. This paper proposes the use of tidal interaction during a swing-by to modify or manipulate the spin and possibly the structure of asteroids, primarily during capture. The possibility of de-spinning, spinning-up or controlled break-up of a captured asteroid is considered. Three simple planar models are used to study the orbit-attitude interactions: the coupled dynamics of an ideal mass-point dumbbell, a simplified decoupled rigid body rotation dynamics, and a circular orbit binary. The evolution of the rotational state and structure of the asteroids is studied for the hypothetical cases of a single lunar or Earth swing-by prior to capture. The final conditions are shown to be highly dependent on the initial rotational state, the distance to the swing-by body, and, most importantly, the relative attitude of the asteroid to the local vertical at pericentre.",
keywords = "orbit determination, asteroid capture, coupled dynamics, flybys",
author = "{Garcia Yarnoz}, Daniel and Colin McInnes",
year = "2014",
month = "9",
day = "29",
language = "English",
pages = "IAC--14--C1.2.13",
note = "65th International Astronautical Congress (IAC 2014) ; Conference date: 29-09-2014 Through 03-10-2014",

}

Garcia Yarnoz, D & McInnes, C 2014, 'Coupled orbit-attitude dynamics of a captured asteroid during swing-bys' Paper presented at 65th International Astronautical Congress (IAC 2014), Toronto, Canada, 29/09/14 - 3/10/14, pp. IAC-14-C1.2.13.

Coupled orbit-attitude dynamics of a captured asteroid during swing-bys. / Garcia Yarnoz, Daniel; McInnes, Colin.

2014. IAC-14-C1.2.13 Paper presented at 65th International Astronautical Congress (IAC 2014), Toronto, Canada.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Coupled orbit-attitude dynamics of a captured asteroid during swing-bys

AU - Garcia Yarnoz, Daniel

AU - McInnes, Colin

PY - 2014/9/29

Y1 - 2014/9/29

N2 - The rotational state and structure of minor bodies undergo major disruptions during very close encounters with massive bodies. This paper proposes the use of tidal interaction during a swing-by to modify or manipulate the spin and possibly the structure of asteroids, primarily during capture. The possibility of de-spinning, spinning-up or controlled break-up of a captured asteroid is considered. Three simple planar models are used to study the orbit-attitude interactions: the coupled dynamics of an ideal mass-point dumbbell, a simplified decoupled rigid body rotation dynamics, and a circular orbit binary. The evolution of the rotational state and structure of the asteroids is studied for the hypothetical cases of a single lunar or Earth swing-by prior to capture. The final conditions are shown to be highly dependent on the initial rotational state, the distance to the swing-by body, and, most importantly, the relative attitude of the asteroid to the local vertical at pericentre.

AB - The rotational state and structure of minor bodies undergo major disruptions during very close encounters with massive bodies. This paper proposes the use of tidal interaction during a swing-by to modify or manipulate the spin and possibly the structure of asteroids, primarily during capture. The possibility of de-spinning, spinning-up or controlled break-up of a captured asteroid is considered. Three simple planar models are used to study the orbit-attitude interactions: the coupled dynamics of an ideal mass-point dumbbell, a simplified decoupled rigid body rotation dynamics, and a circular orbit binary. The evolution of the rotational state and structure of the asteroids is studied for the hypothetical cases of a single lunar or Earth swing-by prior to capture. The final conditions are shown to be highly dependent on the initial rotational state, the distance to the swing-by body, and, most importantly, the relative attitude of the asteroid to the local vertical at pericentre.

KW - orbit determination

KW - asteroid capture

KW - coupled dynamics

KW - flybys

UR - http://www.iafastro.net/iac/browse/IAC-14/

M3 - Paper

SP - IAC-14-C1.2.13

ER -

Garcia Yarnoz D, McInnes C. Coupled orbit-attitude dynamics of a captured asteroid during swing-bys. 2014. Paper presented at 65th International Astronautical Congress (IAC 2014), Toronto, Canada.