Shawn Gano is at it again with a new 4.0 release of his JSatTrak application.    JSatTrak is a Java application that makes use of the WWJava API to display space object locations.

Check out the screen shots to see what all you can view.

New Features in Version 4.0/4.1 (Screen shot on Left)

• ECI plane grid visualization (3D) (v4.1)
• Custom Satellite node to load ephemeris from a file (v4.1)
• Many bug fixes (v4.0/4.1)
• Increased accuracy in coordinate system transformations (v4.0)
• New SGP4 Propagator based on the Center for Space Standards & Innovation (CSSI) version [ref: Vallado 2008] (v4.0)
• 3D sun shading effects (World Wind) (v4.0)
• More 3D view options
• Coordinate system selection for the satellite information dialog (J2000, TEME, MOD, TOD) (v4.0)
• Relicenced under LGPL v3 (v4.0)
• Saved files use zip compression resulting in significantly smaller file sizes (v4.0)