Airborne Sun-tracking photometer enables observations of Sun during much greater portion of flights than previously possible, without special maneuvers of airplane. Instrument occupies dome atop airplane. Fiberglass dome protects photometer and rotates to aim photometer in azimuth and elevation to track Sun. Provides controlled environment for instrument, including mechanical and electronic parts. Instrument calibrated without removing it from airplane.
Photometer Tracks The Sun
NASA Tech Briefs ; 12 , 8
1988-09-01
Miscellaneous
No indication
English
Engineering Index Backfile | 1936
|NTIS | 1988
|NTRS | 1983
|Automatic filter photometer-colorimeter
Online Contents | 1994
NTIS | 1972
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