Film Analysis of Unidentified Objects, 1953

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·Code 01/HWW/lbh
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Serial:
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QQNFB}ENTIAL
SECURITY Th1FORMATION
Subj:
Interpretation of Movies of Unidentified Objects;
progress report on
4.
All objects appear to have the same characteristics in
regards to shape, color, size and relative motion.
5.
The shape of the objects appears to be oblate or disk
shaped, co~or; blue-white, and maximum and minimum size; 98 and 16
f eet.
The size is based on the assumption that the objects are five
miles from the observer.
6.
Fade i n and fade out of the objects were analyzed ae in
3 above.
I n this case the group movement vas such that the distance
between the ob jects and camera was increased so that the objects
could not be recorded on the film thereby causing the apparent fade­
out. Fade-in as attributed to a shortening of the distance from the
fade-out area to the camera station .
.
I
7. Plots of the groups indicate that the objects move counter­
clock-wise relative to t he axis of flight path.
However, nothing has
been detected which indicates motion of the individual objects about
their own axis al though this motion appears to be likely.
8.
In determining the velocity of the objects three assumptions
were ma.de:
a.
The camera was held s tea.dy during Part III of the film.
b.
The objects were moving perpendicular to the opticeJ.
aY..is, and
c.
The objects were five miles from the camera.
It is obvious that (b) is a fallacy ; however, this assumption
vill give the minimum velocity and the actual velocity is greater than
computed.
The assumption that the objects are five miles from the
camera i s a n arbitrary oue.
However , based on the emulsion speed and
focal length, an object 50 feet in diameter a nd five miles from the
camera will be recorded on the film with sufficient resolution to
identify major detail s of the object. It is felt that if these objects
were closer than five miles at the time of recording, details would
appear on the film.
Velocity is computed to be 3780 mph for a shift of l mm per :t'rame
1:f the object is five miles from the observer.
From 55 measurements
taken from Part III of the Utah film, the maxi mum and minimum velocities
COUFIB-Em?IAL
SECURITY INFORMATION
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