Argument of perigee
The argument of periapsis (also called argument of perifocus or argument of pericenter), symbolized as ω, is one of the orbital elements of an orbiting body. Specifically, ω is the angle from the body's ascending node to its periapsis, measured in the direction of motion. For specific types of orbits, words such as "perihelion" (for Sun-centered orbits), "perigee" (for Earth-centered orbits), "periastron" (for orbits around stars) and so on may replace the word "periapsis". See apsis for more information.
An argument of periapsis of 0° means that the orbiting body will be at its closest approach to the central body at the same moment that it crosses the plane of reference from South to North. An argument of periapsis of 90° means that the orbiting body will reach periapsis at its northmost distance from the plane of reference.
Adding the argument of periapsis to the longitude of the ascending node gives the longitude of the periapsis. However, especially in discussions of binary stars and exoplanets, the terms "longitude of periapsis" or "longitude of periastron" are often used synonymously with "argument of periapsis".

This is an excerpt from the article Argument of perigee from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Argument of perigee at en.wikipedia.org was accessed 377 times in the last 30 days. (as of: 11/13/2013)
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Argument of periapsis - Wikipedia, the free encyclopedia
The argument of periapsis (also called argument of perifocus or argument of ... as "perihelion" (for Sun-centered orbits), "perigee" (for Earth-centered orbits), ...
en.wikipedia.org/wiki/Argument_of_periapsis
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Keplerian Elements
The following are Keplerian Elements: Epoch Time; Orbital Inclination; Right Ascension of Ascending Node; Eccentricity; Argument of perigee; Mean Motion ...
marine.rutgers.edu/mrs/education/class/paul/orbits.html
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Orbit Argument of Perigee - CASTOR Home
May 23, 2010 ... The Argument of perigee (w) is defined as the angle within the satellite orbit plane that is measured from the Ascending Node (W) to the ...
www.castor2.ca/03_Mechanics/02_Elements/05_Arg/index.html
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Understanding Orbital Mechanics Through a Step-by-Step ... - AGI
Argument of perigee (ω). The Orientation of the Orbit within the Orbital Plane. • Angle Along Orbital Path Between the Ascending Node and the Perigee. • Always ...
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Argument Of Perihelion | COSMOS
The orbit has been rotated by an angle ω (the argument of perihelion) about ... by the argument of periastron (orbits around stars), Argument of perigee (orbits ...
astronomy.swin.edu.au/cosmos/A/Argument+Of+Perihelion
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Basics of Space Flight: Orbital Mechanics
For these orbits the Argument of perigee is typically placed in the southern hemisphere, so the satellite remains above the northern hemisphere near apogee for ...
www.braeunig.us/space/orbmech.htm
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Keplerian Elements Tutorial - Amsat
Epoch; Orbital Inclination; Right Ascension of Ascending Node (R.A.A.N.); Argument of perigee; Eccentricity; Mean Motion; Mean Anomaly; Drag (optional).
www.amsat.org/amsat/keps/kepmodel.html
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Perigee Argument - The Free Dictionary
per·i·he·li·on (p r -h l - n, -h l y n). n. pl. per·i·he·li·a (-h l - , -h l y ). The point nearest the sun in the orbit of a planet or other celestial body.
www.thefreedictionary.com/Perigee+Argument
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Argument of perigee - Encyclopedia - The Free Dictionary
Encyclopedia article about Argument of perigee. Information about Argument of perigee in the Columbia Encyclopedia, Computer Desktop Encyclopedia, ...
encyclopedia2.thefreedictionary.com/argument+of+perigee
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Parameters Describing Elliptical Orbits - LEPP
The earliest known use of the term "argument" to describe an angle was by .... and pericenter (apogee and perigee) with no mention of eccentricity or period.
www.lns.cornell.edu/~seb/celestia/orbital-parameters.html
Search results for "Argument of perigee"
Argument of perigee in science
Argument Of Perihelion | COSMOS
The orientation of an elliptical orbit can be specified by three orbital elements: the inclination, the ascending node and the argument of perihelion. Suppose we ...
[PDF]High-Fidelity Low-Thrust Trajectory Determination Research and ...
Aerospace Engineering, California Polytechnic University, Undergraduate Student1. 2. High-Fidelity Low-Thrust ... rate of change of Argument of perigee ( rad/s).
[PDF]GPS orbits lab - CERI
GPS Geodesy – Prof. E. Calais – Purdue University. 1 ... Cωc Cωs Crc Crs Cic Cis: corrections coefficients to the Argument of perigee, orbit radius and inclination ...
Argument of periapsis - Wikipedia, the free encyclopedia
The argument of periapsis (also called argument of perifocus or argument of pericenter), symbolized as ω, is one of the orbital elements of an orbiting body.
[PDF]Earth Satellite Environment and Orbits - Princeton University
Oblateness perturbs orbital parameters. – Orbital plane is precessed. – Perigee is advanced or regressed. •Temperature of the. Atmosphere. •Density of the.
Satellite Orbit Design - Nmsu - New Mexico State University
Perigee Altitude, Default Value: 1000Km. A suitable perigee altitude should be chosen so that the orbit ... Argument of perigee should be from 0 to 360 degrees.
Two-body Problem - Navipedia
Feb 23, 2012... Subirana, J.M. Juan Zornoza and M. Hernández-Pajares, Technical University ... defined by the following six orbital parameters (see figures 1 and 2): ... [ω] Argument of perigee is the angle between the ascending node and ...
[PDF]Mission Design for the CubeSat OUFTI-1
university studies because of an epidemic disease in England, he moved to the countryside .... 5.22 Argument of perigee variation over a year . . . . . . . . . . . . 48.
[PDF]A Satellite Constellation - AMSU - Colorado State University
cending node, the Argument of perigee, and the inclina- tion angle. These are illustrated in Fig. 1. The perigee is the point where the satellite is closest to the ...
argument+of+perigee - Oxford Advanced Learner's Dictionary
argument+of+perigee - Did you spell it correctly? Alternative ... Sorry, no search result for argument+of+perigee. Did you mean: ... Oxford University Press ©2013.
Books on the term Argument of perigee
Spacecraft Dynamics and Control: A Practical Engineering ...
Marcel J. Sidi, 1997
Moreover, depending on the initial satellite launch parameters, the initial perigee argument might not be located at the correct geographical latitude. Alignment and adjustments of the Argument of perigee then become imperative. Suppose we ...
Remote Sensing from Air and Space
Richard C. Olsen, 2007
4.5.5 Closest point of approach (Argument of perigee): co This is the latitude for perigee, measured from the ascending node in the orbital plane in the direction of satellite motion, co = 0° corresponds to perigee occurring over the equator, 90°  ...
Orbital Mechanics for Engineering Students, Third Edition (Aerospace Engineering)
2013
Written by Howard Curtis, Professor of Aerospace Engineering at Embry-Riddle University, Orbital Mechanics for Engineering Students is a crucial text for students of aerospace engineering. Now in its 3e, the book has been brought up-to-date with new topics, key terms, homework exercises, and fully worked examples. Highly illustrated and fully suppo...
Analytical mechanics of space systems
Hanspeter Schaub, John L. Junkins, 2003
This book provides a comprehensive treatment of dynamics of space systems starting with the basic fundamentals.
It's ONLY Rocket Science: An Introduction in Plain English (Astronomers' Universe)
Lucy Rogers, 2008
Most amateur astronomers' and many of those with similar interests but who are not currently practising observers' have only a sketchy understanding of space flight. This book provides an introduction to its mechanics. The beauty of this book, written by an engineer who is also an accomplished science writer, is that it covers the subject...
Methods of Celestial Mechanics: Volume II: Application to ...
Gerhard Beutler, 2006
Over longer time spans (see Figures 3.2) the right ascension of the ascending node and the Argument of perigee are dominated by secular perturbations. Five days seems like a rather short time interval. On the other hand, the degree of ...
Global Positioning System: Signals, Measurements, and Performance (Revised Second Edition)
2010
The second edition of this widely praised book offers a comprehensive introduction to GPS: the system, signals, receivers, measurements, and algorithms for estimation of position, velocity, and time. It is intended as a textbook for a senior- or graduate-level engineering course and a self-study guide for practicing engineers. The book is divided i...
Theory of Geostationary Satellites
Chong-Hung Zee, 1989
His expression of Argument of perigee becomes singular when the eccentricity of the orbit is zero. He also found that resonance will occur when the angular movement of the perigee of an orbit follows the motion of the Sun . Bryant (1961) used ...
Orbital Mechanics for Engineering Students, Second Edition (Aerospace Engineering)
2009
* A complete, stand-alone text for this core aerospace engineering subject* NEW: updated throughout, with new coverage of perturbations, Lambert's problem, attitude dynamics, and techniques for numerically integrating orbits* NEW: more examples and homework problems, more Matlab algorithms* NEW: improved support material, including instructor ...

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Argument of perigee
Orbit Perturbations | Aerospace Engineering
Posted on October 7, 2013 by aerospacengineering.
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