Table 2
Optical Elements of the Low and Medium Resolution Cameras

                         Clear Aperture
                                
Mirror, Function        Area,      Radius, r,    Focal       OffAxis
(Description)           (cm2)         (cm)      Length,    Distance, H,
                                                 (cm)          (cm)

M1, Targeting           22.7         2.69      Infinity       ---
(Flat)

M2, Primary Focusing     7.5         1.55       17.000       12.441
(OffAxis Parabola)

M3, Collimating         62.4       3.9 × 4.0    25.000       17.365
(OffAxis Parabola
Rectangular)

M4, Sensor Select       19.6         2.5       Infinity       ---
(Flat)

M5, Low Resolution      19.6         2.5        18.750       23.140
(OffAxis Parabola)

M6, Low Resolution      15.7       2.0 × 2.5   Infinity       ---
Turning (Flat Oval)

M7, Medium Resolution   19.6         2.5        18.750       23.140
(OffAxis Parabola)

M8, Medium Resolution   12.6         2.0       -17.790        7.477
Magnifying
(OffAxis Inverted
Parabola)