More Details On:
Near-Infared Camera
Near-Infrared Camera
The NIR
camera used an indium antimonide (InSb), 256 x 256 pixel array mechanically cooled
to 70 K and sensitive between 0.9 and 3.1 micrometers. Its field of view was 5.6
degrees x 5.6 degrees, with an IFOV of 396 microrad. As developed by Lawrence
Livermore National Laboratory (LLNL), the NIR camera had
a single pass band. At the request of the NASA Science Advisory Committee, a six-position
filter wheel was added to the instrument. All except the longest-wavelength pass
band were selected by the NASA Science Advisory Committee.
Each of the six pass bands of the NIR camera were used to image
the entire lunar surface. The NIR camera used on Clementine weighed 1920 g, including
the Stirling-cycle cryocooler; this represents a significant decrease in mass when
compared to similar sensors.
|
Specifications |
Filter Wheel (6 Positions) |
|
| Mass | 1920 grams | A: 1100 nm (60 nm width) |
| Size | 11.5 x 12 x 37 cm | B: 1250 nm (60) |
| Avg. Power | 21.5 W | C: 1500 nm (60) |
| Wavelength | 0.9-3.1 microns | D: 2000 nm (60) |
| Field of View | 5.6 x 5.6 degrees | E: 2600 nm (60) |
| Pixel Format | 256 x 256 | F: 2690 nm (120) |
| Focal Plane Array | InSb (Amber Eng.) | |
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