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TESS Science Instrument

FOUR WIDE FIELD-OF-VIEW CCD CAMERAS

TESS InstrumentThe 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:

  • 24° × 24° Field-of-View
  • 100 mm effective pupil diameter
  • Lens assembly with 7 optical elements
  • Athermal design
  • 600nm - 1000nm bandpass
  • 16.8 Megapixel, low-noise, low-power, MIT Lincoln Lab CCID-80 detector
Diagram of the TESS lens assembly, CCD focal plane, and detector electronics.
Figure Above: Diagram of the TESS lens assembly, CCD focal plane, and detector electronics.
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.
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.

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