
	Where results make sense

Topic: Orbit (dynamics)

Related Topics

geostationary orbit

geosynchronous orbit

Earth orbit

orbit mathematics

polar orbit

The Escape Orbit

William Orbit

single stage to orbit

High Earth Orbit

Hohmann transfer orbit

retrograde orbit

In the News (Sat 14 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Chapter 1: Assessing the Threat (cont).
		The orbit elements of some other significant comets (at least as far as meteor showers are concerned) are given in Appendix A. The orbit elements presented here were obtained from the Solar System Exploration Division of the NASA Jet Propulsion Laboratory.
		Once the basic orbit of the meteor stream is established based upon the behavior of the parent comet, the ejection of the future meteoric particles must commence.
		For these parents, the orbits of the child particles do not have time to be significantly dispersed or altered before a fresh batch of children is birthed by the parent.
	www.aero.org /publications/peterson/peterson-2.html (3090 words)

	Remote Sensing-Atmospheric Dynamics Data Sources
		The duration of one orbit of the satellite is the same as the Earth's rotation period.
		A recurrent orbit is an orbit in which the satellite returns to the same position over the surface of the Earth within 24 hours, regardless of how many orbits it has made in that time.
		In a sun-synchronous orbit, the direction of rotation of the orbital plane and the period (the rotation angle per day) are the same as the Earth's orbital period (the rotation angle per day).
	daac.gsfc.nasa.gov /atmosphere/dynamics/documentation/remote.shtml (2206 words)

	Tether Dynamics
		An orbiting satellite is acted on by the force of gravity, which pulls it toward Earth.
		So, if two free-flying satellites are in orbits at different altitudes, the lower satellite will circle the Earth in less time than the satellite in the higher orbit.
		As the lower satellite slows down, it will tend to fall to a lower orbit because the force of gravity is not being balanced completely, but the tether pulls it upward to make up the difference.
	liftoff.msfc.nasa.gov /academy/tether/dynamics.html (653 words)

	Orbit (dynamics) - Wikipedia, the free encyclopedia
		If the dynamical system is a map, the orbit is a sequence and if the dynamical system is a flow, the orbit is a curve.
		It is often the case that the evolution function can be understood to compose the elements of a group, in which case the group-theoretic orbits of the group action are the same thing as the dynamical orbits.
		The simplest closed orbit is a fixed point, where the orbit is a single point.
	en.wikipedia.org /wiki/Orbit_(dynamics) (384 words)

	Matches for:
		The author describes what he calls single orbit dynamics, which is an approach to the analysis of dynamical systems via the study of single orbits, rather than the study of a system as a whole.
		He presents single orbit interpretations of several areas of topological dynamics and ergodic theory and some new applications of dynamics to graph theory.
		In the concluding lectures, single orbit approaches to generalizations of the Shannon-Breiman-McMillan theorem and related problems of compression and universal coding are presented.
	www.mathaware.org /bookstore-getitem/item=cbms-95 (189 words)

	orbit
		By the early 1600s, celestial orbits were observed and described by Galileo, Kepler, and others.
		In this low orbit, the satellite is in sunshine for nominally 0.8 hours and in darkness for 0.7 hours, each revolution.
		To the extent that energy expended to alter orbits does not result in large angular momentum change, the inverse relationship of speed and orbit height noted here, is also seen to be consistent with conservation of angular momentum.
	rpm2.8k.com /orbit.htm (3579 words)

	Newtonian Gravitation and the Laws of Kepler
		From Kepler's 1st Law the orbit is an ellipse with the Sun at one focus; from Newton's laws it can be shown that this means that the magnitude of the force must vary as one over the square of the distance between the planet and the Sun.
		The orbits of some of the planets (e.g., Venus) are ellipses of such small eccentricity that they are essentially circles, and we can put artificial satellites into orbit around the Earth with circular orbits if we choose.
		For a given central force, increasing the velocity causes the orbit to change from a circle to an ellipse to a parabola to a hyperbola, with the changes occurring at certain critical velocities.
	csep10.phys.utk.edu /astr161/lect/history/newtonkepler.html (874 words)

	Orbit (disambiguation) - Wikipedia, the free encyclopedia
		Orbit (anatomy), the socket in the skull which accommodates an eye
		Orbit, an optimizing compiler for the T dialect of the Scheme programming language
		Orbit (the anthology series), a series of original science fiction anthologies
	en.wikipedia.org /wiki/Orbit_(mathematics) (154 words)

	Orbit Dynamics Software Design and Modeling (Site not responding. Last check: 2007-11-05)
		We are knowledgable in the determination of optimal orbits of earth satellites for civilian or military purposes, and in addition, to the determination of heliocentric orbits of the planets, asteroids and comets of our solar system.
		These near earth objects are asteroids or minor planets and comets that move in fairly high eccentric orbits that cross the earth's orbit and could pose a threat to earth.
		atmospheric and ionospheric path length delays, time tag corrections, etc. In many cases, precise orbit determination of satellites is an iterative process, in which tracking observations are used both to compute the orbit and to update/improve existing or to develop new force models, satellite dependent models, and measurement correction models.
	www.omitron.com /astro/orbit.asp (377 words)

	Climate Timeline Tool: Climate Science - Orbital Dynamics
		During periods of high eccentricity (a more elliptical orbit), the effect of precession on the seasonal cycle is strong.
		When eccentricity is low (more circular), the position along the orbit at which the equinoxes occur is irrelevant because all points on the orbit become, in effect, perihelia.
		Like precession and eccentricity, changes in tilt thus influence the relative strength of the seasons, but the effects of the tilt cycle are particularly pronounced in the high latitudes where the great ice ages began.
	www.ngdc.noaa.gov /paleo/ctl/clisci100ka.html (474 words)

	[40P.14] Orbit Dynamics in the Comet Environment (Site not responding. Last check: 2007-11-05)
		Analysis results include a stability diagram for spacecraft orbits, lifetime estimates for bodies ejected from the comet surface, and a description of the basic physics of orbit dynamics in the comet environment.
		Large classes of motion exist which are unstable and lead to escape from or impact onto the nucleus in short time scales.
		The existence of stable orbits also indicate that natural particles lifted from the comet surface may remain in orbit about the comet for extended periods of time, or at least until perihelion is encountered again.
	www.aas.org /publications/baas/v30n3/dps98/46.htm (202 words)

	SCT Orbit Module (Site not responding. Last check: 2007-11-05)
		The Orbit Module, for use with the Spacecraft Control Toolbox, provides functions for orbit dynamics analysis and simulation, orbit maneuver planning and includes a high-fidelity orbit propagator.
		The user can plug in an orbit control function to turn on thrusters during propagation.
		In addition, the user can create his or her own control routines for feedback orbit control.
	www.psatellite.com /products/html/SCT_Orbit.php (357 words)

	JPL Solar System Dynamics
		This site provides information related to the orbits, physical characteristics, and discovery circumstances for most known natural bodies in orbit around our sun.
		Orbit diagrams for most solar system bodies as well as tables of orbital elements for the planets, planetary satellites, asteroids and comets are available.
		This site is maintained by JPL's Solar System Dynamics Group.
	ssd.jpl.nasa.gov (283 words)

	Orbit/Rendezvous FDO Overview
		The Flight Dynamics Officer (FDO, pronounced "fido") is responsible for the overall trajectory, or flight path, of the Space Shuttle and all related payloads or other space-bound vehicles associated with the Shuttle.
		The FDO is a Mission Control Center (MCC) Flight Control position at NASA's Johnson Space Center.
		On the following pages are the contents of a presentation that is given by the Flight Dynamics Officers whenever the question "What is a FDO?" is asked.
	members.aol.com /ramjetfdo/private/Space/FDO.html (154 words)

	v85cont
		Precision Orbit Determination for the Mars Observer Mission(AAS 93-602), R.
		Orbit Determination of HITEN for Insertion into Lunar Orbit (AAS 93-606), Premkumar R. Menon, Leonard Efron, James K. Miller 331
		Dynamics and Stability of a Spinning Tethered Spacecraft with Flexible Appendages (AAS 93-736), G. Tyc, R. Han, F. Vigneron, A. Jablonski, V.
	www.univelt.com /Advances/htmlAD/v85cont.htm (2906 words)

	Nicholas Ormes -- CV
		Topological realizations of families of ergodic automorphisms, multitowers and orbit equivalence, with I. Kornfeld, to appear Israel Journal of Mathematics.
		Courses: Ergodic Theory, Chaos, Dynamics and Fractals, Operations Research, Symbolic Dynamics, Topology, Probability, Discrete Mathematics, Number Theory, Transition to Advanced Mathematics, Linear Algebra, Calculus, Symmetry, Groups and Cryptography Seminar, Math for Elementary Education Majors, Pre-calculus, College Algebra.
		Conference, Probabilistic Aspects of Single Orbit Dynamics, California State Univ., Bakersfield.
	www.math.du.edu /~normes/vita.html (445 words)

	DESY Polarization Papers
		Our main tool is the spin-orbit dynamics program SPRINT, which was developed in order to allow us to calculate the equilibrium polarization distribution across phase space at high energy.
		SPRINT is based on the Stroboscopic Averaging technique for computing invariant subspaces of the coupled spin and orbit dynamics.
		The semiclassical Foldy-Wouthuysen transformation and the derivation of the Bloch equation for spin-1/2 polarised beams using Wigner functions
	www.lns.cornell.edu /~hoff/proton_pol/desypolpapers.html (899 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations
		Energy Citations Database (ECD) Document #6574092 - Lectures on nonlinear orbit dynamics
		Availability information may be found in the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or via the "Full-text Availability" link.
		Lie algebraic techniques are developed to analyze nonlinear orbit dynamics.^Application include charged-particle transport, light optics, and colliding beams.^(AIP)
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=6574092 (127 words)

	Technical Paper Library
		Earth Shadows and the SEV Angle of MAP’s Lissajous Orbit at L2 (PDF 648KB)
		A Preliminary Formation Flying Orbit Dynamics Analysis for Leonardo-BRDF (PDF 393KB)
		A Case Study in Spacecraft Orbit Constraint Resolution Using Fuzzy Logic (PDF 76KB)
	www.ai-solutions.com /?section=technical_library (1180 words)

Try your search on: Qwika (all wikis)