We proposed to NASA's Explorer Technology Program to design and build a star tracker. We were successful, and under this grant to the University of Wisconsin, we built a star tracker that was backward compatible with the Ball STRAP tracker used in the sounding rocket program.

Our proposal abstract is here.

Click on these thumbnails to see what it looks like.

The electronics box, engineering camera head, and the GSE box.

A close-up of the Ball-style head. This has the same mechanical footprint as the Ball STRAP tracker currently being used.

NOTE: We have another ST5000 web site with more information. Contact Jeff Percival, jwp at sal.wisc.edu.