Chrome no longer supports Java applets, so you'll need to use a browser such as Firefox,
Internet Explorer or Safari to run the orbit applet.
Also, make sure you have Java installed and enabled on your web browser to view the applet.
This applet is provided as a 3D orbit visualization tool.
This 3D interactive program (above) shows the orbits of two comets:
P/2016 BA14 (PANSTARRS) (red orbit)
252P/LINEAR (blue orbit).
These two comets passed safely by the Earth in March 2016.
Their orbits are so similar that may have fragmented from each other in the past.
Custom Orbit Viewer applet provided by Ron Baalke (JPL).