Tomas Jun 30, 2011
--- In find_orb@yahoogroups.com, Bill J Gray <pluto@...> wrote:
>
> Hi Tomas,
>
> Looks as if I need to add a step in that section of the documentation:
> you have to go into Settings, and make sure that the 'heliocentric orbits
> only' box is not checked. By default, it's unchecked. But every now
> and then, one does need heliocentric elements, even though logic would
> suggest planetocentric ones... I usually run into that situation when
> I want to generate elements for use in software that requires heliocentric
> data.
>
> The elements you got look to be exactly right, except for being
> heliocentric instead of geocentric. Turn off that check-box, and
> set the epoch to 7.12 October (closer to the impact time), and perhaps
> adjust the collision altitude, and you should get the right impact point.
>
> -- Bill
>