A balloon-borne, 0.5-m, Czerny-Turner grating spectrometer has been designed and constructed at the University of Denver and has measured atmospheric transmittance in several spectral regions between 2 µ and µ. These data have been obtained on a series of eleven balloon flights at three geographic locations over a period of thirty months. The solar pointing system, spectrometer optics, electronics and recording system are described. The preflight and flight performance of the spectrometer is discussed and sample data presented.
David G. Murcray, Frank H. Murcray, and Walter J. Williams, "A Balloon-Borne Grating Spectrometer," Appl. Opt. 6, 191-196 (1967)