Geometric evaluation of Skylab S-192 conical scanner imagery

Imagery produced by Skylab S-192 multispectral conical scanner (MSCS) was evaluated for geometric fidelity (in two and three dimensions) and sensor pointing accuracy. The performance of the Skylab Earth Resources Experiment Package (EREP) hardware was monitored and algorithms were developed for imagery evaluation and for generating registered data tapes. Two mathematical models were elaborated for geometric evaluation of S-192 MSCS imagery data: the three-dimensional evaluation provides results on the accuracy of tabulations, pointing accuracy of the sensor, and time correlations; the two-dimensional evaluation reproduces S-192 digital data on a screening film.