FOUR WIDE FIELD-OF-VIEW CCD CAMERAS
The TESS payload consists of four identical cameras and a Data Handling Unit (DHU). Each camera consists of a lens assembly with seven optical elements, and a detector assembly with four CCDs and their associated electronics. All four cameras are mounted onto a single plate.
Each of the four cameras has:
|Figure Above: Diagram of the TESS lens assembly, CCD focal plane, and detector electronics.|
|Figure Above: Left.| Two lens prototypes that were constructed. Right.| The detector assembly of one of the prototype lenses. The frame-store regions of the CCDs are covered.|