The ninth Keplerian orbital element, specifying number of orbits, (in revolutions) that a satellite has made since its launch. Expressed in most formats as RRRR, (Revolutions). This figure is sometimes ambiguous or in error. It has no effect on most tracking calculations.

<= ^ =>

Y'know, if you log in, you can write something here, or contact authors directly on the site. Create a New User if you don't already have an account.