Earth Orbits

Earth Orbits - Earth Orbits JIN KANG Classical Orbital Elements 2 Orbital size Uses semimajor axis a Orbital shape Defined by eccentricity e

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
JIN KANG Earth Orbits
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Classical Orbital Elements 2 ! Orbital size ! Uses semimajor axis, a ! Orbital shape ! Defined by eccentricity, e ! Orientation of orbital plane in space ! Inclination, i ! Right ascension of ascending node, ! ! Orientation of orbit within plane ! Argument of perigee, " ! Spacecraft’s location in orbit ! True anomaly, #
Background image of page 2
Orbit Size and Shape 3 Semimajor axis, a / eccentricity, e
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Inclination 4 ! Geocentric-equatorial coordinate system ! Fundamental plane : Earth’s equator ! Principal direction $ , to vernal equinox ! North Pole direction = % ! Inclination, i ! Tilt of orbital plane with respect to fundamental plane ! 0 ° or 180 ° = equatorial orbit ! 90 ° = polar orbit ! 0 ° i 90 ° " prograde orbit (easterly) ! 90 ° i 180 ° " retrograde orbit
Background image of page 4
5
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Right Ascension of Ascending Node 6 ! Describe orbital orientation with respect to principal direction, $ ! ‘right ascension’ ! Similar to longitude except its reference point is vernal equinox ! Does not rotate with earth
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/26/2011 for the course MEM 373 taught by Professor Jinkang during the Spring '11 term at Drexel.

Page1 / 19

Earth Orbits - Earth Orbits JIN KANG Classical Orbital Elements 2 Orbital size Uses semimajor axis a Orbital shape Defined by eccentricity e

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online