Results of photographing the Progress cargo space ship in space in the UV region

This paper discusses the results of an experiment on board the Mir space st ation, using the Pegas UV camera. Spectrozonal photography of the surface o f the hull of the Progress cargo space ship, illuminated by the sun at a ce rtain zenith angle at a wavelength of 0.28 mum and a spectral width of 0.02 5 mum, made it possible to measure the spectral radiance densities of indiv idual elements (sections) of the hull surface, to determine their statistic al weights, and to compute the spectral radiance density (averaged over the part of the hull surface turned toward the observer) and the mean spectral geometrical albedo. (C) 2001 The Optical Society of America.