Hello Bill,

> If you decide to observe remember that your Planetarium program will not be able
> to give you reliable ephemeris. You will need to use the MPC ephemeris service as
> http://www.minorplanetcenter.net/iau/MPEph/MPEph.html%c2%a0and enter your geographic
> coordinates or MPC observatory code so the positions are computed for
> your site.

can you tell me, if the statement in the first sentence is right? Will Guide not
be able to show the position of such a near asteroid to an accuracy of say 1'?
Will the change in orbital elements during this flyby be so large that the
position will become uncorrect? I'm considering the time span from 15.04. 20:00UT
till 16.04. 00:00UT here.

Clear skies
Bernd

Bernd Brinkmann

Sternwarte Herne, MPC code A18
Herne, Germany

e-mail: info@...
http://www.sternwarte-herne.de