30m

1
Zenith, 90 km Na layer
star
Stars 5 arcmin fov
30m
Na light
25.0m
51.8m
15 km
26.7m
44.5m
10 km
5 km
37.2m
28.3m
0 km
30.0m
30.0m
2
Stars 5 arcmin fov
Zenith angle 45, 90 km Na layer
30m
Na light
height
25.0m
60.9m
15 km
26.7m
50.6m
10 km
5 km
40.3m
28.3m
0 km
30.0m
30.0m
3
Star focal plane, 30m, f/15
0.5m
star
Na
Na focus 1.60m at 45
Na focus 2.26m, zenith
zenith
Image in focal plane 5 arcmin FOV
Image in intermediate plane 5 arcmin FOV
Star and Na footprints near the focus for 5
arcmin FOV, f/15 beam