I've a problem with speed of asteroid.

I select an asteroid (2000 LB12 at 29 Jul 2000) click right mouse
select "display" -> "option" and set "line of variation"
to 0.041666 days (1 hour).
Then with right mouse I misure the track as is 2.6'
Then click righ mouse and select "more info", I see that
speed of apparent motion is about 28"/hour.

Have I wrong something ? or is there a bug ?

Moreover, if with menu "go to" -> "asteroid" I write "2000 LB12"
I can't find it.
Also if I get from Lowell Observatory's Critical Asteroid Lists
number 15500, go to fuction return "not and asteroid".
I'am using a MPCORB.DAT dated 19-06-2000.

Bye,
-Alessandro