Table 2
Basic geometry of data for NIX cameras.
| Camera | Pix scale maspix−1(a) | Offset angle(b) | East direction |
|---|---|---|---|
| JHK–13mas | 13.09 | +0.4° | Right |
| JHK–27mas | 26.92 | −1.5° | Left |
| LM–13mas | 13.03 | +0.4° | Right |
Notes. (a)Pixel scale averaged over all directions. The anamorphism reduces the pixel scale by about 0.2% in the vertical direction and increases it by the same amount horizontally. (b)The offset angle PAoffset is defined as the angle (measured east of ‘up’) that corresponds to north in the detector raw data, for a nominal zero position angle.
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