Asteroid Dynamic Site
http://hamilton.dm.unipi.it/cgi-bin/astdys/astibo
http://newton.dm.unipi.it/cgi-bin/neodys/neoibo
Minor Planet Center
http://cfa-www.harvard.edu/iau/lists/MPLists.html
http://cfa-www.harvard.edu/iau/lists/CloseApp.html
http://cfa-www.harvard.edu/iau/lists/MarsTrojans.html - note, this list is down
http://cfa-www.harvard.edu/iau/lists/InnerPlot.html
http://cfa-www.harvard.edu/iau/lists/OuterPlot.html
This is SO COOL!
Animations
JPL
http://neo.jpl.nasa.gov/orbits/
check orbits of
2001GP2
1999KW4
2000PH5
ASTEROID RADAR ASTRONOMY
http://echo.jpl.nasa.gov/
NEAR
http://near.jhuapl.edu/
More 2001GP2 Data (note close approach in 2020 < 4 moon distance? maybe:)
http://newton.dm.unipi.it/cgi-bin/neodys/neoibo?objects:2001GP2;main
More 1999kw5 Data
http://newton.dm.unipi.it/cgi-bin/neodys/neoibo?objects:1999KW4;main
E.A.R.N. Database
http://earn.dlr.de/nea/