Sun sensor boresight alignment testing for the Halogen Occultation ExperimentThe boresight alignment testing for the sun sensor assembly on the Halogen Occultation Experiment (HALOE) is described. The sun sensor assembly consists of three sensors that provide feedback signals for controlling dual axes gimbals. Two energy balancing silicon detectors are operated as wideband sensors in the azimuth and elevation axes. The third sensor is a silicon photodiode array operated as a narrow-band sensor in the elevation axis. These sensors are mounted on a common Invar structure which is mounted to the HALOE telescope. A blackbody was used as the stimulating source to perform the initial boresight alignment and this was checked with a heliostat solar look and a direct solar look. These tests are explained with a comparison between each source used.
Document ID
19880023737
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Moore, A. S. (NASA Langley Research Center Hampton, VA, United States)
Laney, V. S. (NASA Langley Research Center Hampton, VA, United States)
Mauldin, L. E., III (NASA Headquarters Washington, DC United States)