Sun Sensor, Eye Block
Photoelectric sun sensing unit similar to those flown on the OSO series satellites. The OSO satellites consisted of a circular bus that rotated at 30 rpm and an upper sail-like section that carried solar cells and additional instruments. (see OSO-1; Catalogue # A19820270000). Signals from this sail-mounted sun sensor were fed to a servo-feedback mechanism to keep the upper portion instruments and solar cells pointed on the center of the sun within +/- 1 minute of arc. This device was transferred to NASM by NASA (GSFC) in 1988.
Transferred from the National Aeronautics and Space Administration
- Country of Origin
- United States of America
- Ball Brothers Research Corp.
- Manufactured for
- NASA, Goddard Space Flight Center
- SPACECRAFT-Unmanned-Parts & Structural Components
- Aluminum, glass optics
- Other: 3 × 2 × 4 in. (7.6 × 5.1 × 10.2cm)