See:
http://ssd.jpl.nasa.gov/horizons.cgi#top
Change "Observer Location" to suit, and "Display/Output" if you don't want to save the file. "Time Span" is a reasonable starting point and remember it is in UTC.
Current Settings
Ephemeris Type [change] : OBSERVER
Target Body [change] : Asteroid (2005 YU55)
Observer Location [change] : Sydney Australia ( 151°16'59.9''E, 33°54'59.8''S )
Time Span [change] : Start=2011-11-08, Stop=2011-11-13, Step=1 h
Table Settings [change] : QUANTITIES=2-4,9,10,21,23,27
Display/Output [change] : download/save (plain text file)
