An atmospheric study by 'Spectrum-15' onboard of the Salyut-6 orbital station

The multichannel spectrometer system, Spectrum-15, on board the Salyut-6 orbital station, is used to investigate the air pollution over large cities and industrial centers. The Spectrum-15 instrument has 15 channels, each bandwidth of which is not greater than 20 nm. It uses an objective width focus distance of 300 mm, a relative aperture of 1:4, and an angle-of-sight of 8 deg. The instrument is used in several study programs to define atmospheric transparency, determine aerosol indices of atmospheric scatter, and study the dependence of frequency on the atmospheric transfer function. The preliminary data processing of results from these investigations are presented in graphic form and interpreted. A list of the various program investigations carried out thus far is given, along with their corresponding dates and orbits as well as the cosmonaut who performed the study.