Precession rate

From AMS Glossary
Revision as of 16:53, 20 February 2012 by Perlwikibot (Talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search


precession rate

  1. The angular motion of the orbital line of nodes in fixed space; positive to the east, negative to the west.

    The precession rate for a sun-synchronous orbit is -0.986° per day, or about 360° per year. The net effect is that the satellite's orbital plane rotates slowly around the earth at the same rate and direction that the earth rotates around the sun, hence, sun-synchronous.

  2. The period of time needed for a positional shift in the location of astronomical bodies.

Personal tools
Namespaces
Variants