In message <3.0.6.32.20000203231828.007c5970@...>, James
Ellis <ejge@...> writes

>PHA's:
>If asteroids or comets are to pass close to Earth then don't their
>ascending and descending nodes need to be near our orbit? ie where they
>pass through the ecliptic.
>Now there must be a way of calculating this from a given eccentricity,
>inclination, perihelion arguement of perihelion etc etc...
>
>I'll try inewton@..............
>
>Cheers until next time
>

Thanks James,
I have to admit, I don't understand the maths in this, but I do think it
would be a useful display.
Any help would be appreciated

Cheers

Alan
--
Alan Cahill