Under Satellite | Select highlight a specific satellite, then hit the button at the lower left of the box that says "Sat. Info.".
The info is shown in the browser window.

Another interesting thing is the Options. Change the Update Rate to 1/4 and the Timing to x100 (x1000 is a little too fast).

[edit] Zooming way out is good to get a full view. Chandra is definately the largest orbit shown, with XMM second. Strangely, XMM is listed under 'Navigation' although its mission is study of x-ray sources far away. I think somebody at NASA has a bit of debugging to do on their java applet.