The next category of transient phenomena are glowing, columnar (possibly collimated) emissions of iridescent appearance and of durations ranging from roughly 1/6 second (four motion picture frames at 24 frames per second) down to approximately 1/24 second (one frame, including pull-down time, for conservatism in the calculation) as computed from the 12/12/77 film. The emissions display little or no divergence with distance from the object and tend to remain columnar. Such emissions have a propagation rate which on occasion substantially exceeds a calculated 636 miles per second or 2,289,600 miles per hour (only about 1/292 the speed of light), based on study of images in frames #1460 and #1461, coupled with other data. Study of some other frame sequences provides a higher figure, but the quoted figure is chosen as an example because of the good image quality in those frames. Also some examples of lower propagation rates have been found.

PHOTO OP-3: Positive (top) and negative (bottom) prints (un-enhanced but photographed off video screen projection of original frame). This enlargement shows columnar emission as it begins issuing from glowing tubular object, over 100 miles from airliner, 12/12/77.