Report of Meetings of the Office of Scientific Intelligence Scientific Advisory Panel on Unidentified Flying Objects, January 14-18, 1953

Read from the scan by GLM-OCR; expect the odd misread word.

1000 min-hours of professional and sub-professional time in the preparation of graph plots of individual frames of the film, showing apparent and relative motion of objects and variation in their light intensity. It was the opinion of the P.T.L. representatives that the objects sighted were not birds, balloons or aircraft, were "not reflections because there was no blinking while passing through 60° of arc" and were, therefore, "self-luminous". Plots of motion and variation in light intensity of the objects were displayed. While the Panel Members were impressed by the evident enthusiasm, industry and extent of effort of the P.T.L. team, they could not accept the conclusions reached. One of the reasons for this were as follows:

a. A geometrical object can readily predict, reliably,

of sunlight without "blinking" through 60° of arc travel.

b. Although no data was available on the "feathers" of birds or polyethylene balloons in bright sunlight, the apparent variations, also and brightness of the objects were considered strongly to suggest birds, particularly from the Panal viewed a short film showing high resemblance of bengalis in bright sunlight.

6. P, I, L, description of the objects sighted in different colors, blueish-white in color would be represented in cases of several reflections of sunlight from surfaces where the brilliance of the reflection would obscure other portions of the objects.