In-Flight Calibration of the Wind Imaging Interferometer (WINDII) on Board the Upper Atmosphere Research Satellite.

The Wind Imaging Interferometer (WINDII) was launched on the Upper Atmosphere Research Satellite to measure the Earth's upper-atmospheric wind and temperature. It is a remote-sensing instrument that employs a field-compensated Michelson interferometer to measure the Doppler shift, line width, and emission rate of naturally occurring airglow emission lines. The data analysis uses calibration data that were obtained in the laboratory prior to launch.

Thermally stable field compensated Michelson interferometer for measurement of temperature and wind of the planetary atmospheres.

A Michelson interferometer has been built to measure the wind and temperature in the earth's upper atmosphere using nightglow emissions from atomic oxygen and radical OH. The interferometer uses field compensation to give large geometric etendu allowing measurements with emission lines of intensity of approximately 30 R at zenith. For wind measurement, it is thermally stabilized permitting operation without difficulty.

Ground based instrument for observing near IR nightglow inhomogeneities at zenith and throughout the sky.

An instrument for the study of the dynamics of the upper terrestrial atmosphere by optical method has been built. It is an automatic high sensitivity imaging system able to record the spatial variation of the nightglow intensity in the near IR. The low intensity and contrast of the structures led to a system combining a TV imager and a photo camera.

Atmospheric Physics and Earth Observations: Waves in the OH Emissive Layer.

An instrument designed to take pictures of infrared spatial structures from space was flown on Spacelab 1. An image intensifier was used to give enough sensitivity and images were recorded on photographic film. The instrument worked perfectly and 1771 pictures were obtained during the night on 27 orbits (one picture every 16 seconds).