Working with Keplerian Elements & Deriving Vernal Equinox

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The discussion focuses on utilizing Keplerian elements from the JPL website to derive various orbital parameters, including Mean Anomaly, Eccentric Anomaly, and True Anomaly, with a particular emphasis on the Vernal Equinox. The Vernal Equinox, occurring around March 21, is linked to the position of the Sun relative to the constellation Pisces, establishing a reference angle for the Ascending Node at approximately 270.02 degrees for Earth. The calculations presented suggest a relationship between the Vernal Equinox and specific angles throughout the year, indicating a systematic approach to understanding orbital mechanics. The user seeks validation of their findings and mentions challenges in converting celestial to galactic coordinates. Overall, the discussion highlights the application of Keplerian elements in determining key astronomical events and their implications.
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I am working with the Keplerian Elements from the JPL web site.

a - Semi-Major Axis
e - Eccentricity
I - Incilination
L - Mean Longitude
long.peri. - Longitude of the Periapsis
long.node.or N - Longitude of the Ascending Node

http://ssd.jpl.nasa.gov/txt/p_elem_t2.txt

From this you can derive

MA - Mean Anomaly
EA - Eccentric Anomaly
v - True Anomaly
r - Radius
Equ - Vernal Equinox

All of this data revolves around the v=0 point or the Periapsis, the point where the elliptical orbit is the closest to the sun. Now from this point the Vernal Equinox can be derived. The Vernal Equinox occurs on about March 21 every year. When looking thru the Sun on 3-21 the constellation that you see is Pisces. At the angle (the Sun to Pisces from the Periapsis) is the basis of the reference angle for the start of the Ascending Node, I think. It comes out to be 270.02 for the Earth. The data seems to be coming out right, Equ+N+w+v=0 @ 12-21, Equ+N+w+v=90 @ 3-21, Equ+N+w+v=180 @ 6-21 and Equ+N+w+v=270 @ 9-21. I just want to know If I am way off or I am right on target.
 
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