Project Blue Book File on Tremonton Film, Utah, 1952

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QUESTIONS REGARDING ANALYSio OF Fillf
1. Are images made ~ light source or reflection?
2.
Any indication of what kind of objects could have caused images?
Is there any bird sufficiently actinic to cause images?
Could they have
been caused by aircraft or balloons?
3. What causes the impression that same objects at times appear to
become 2 or 3 objects,at times appear to merge into one?
4.
Do all objects have same characteristics?
a. Same apparent shape?
b. Same relative size?
c. Same Color?
d. Same general motion?
5. What are shape(s), color(s), and relative size(s) of objects?
6. To what can the "fade-in" and "fade-out" of the objects be attri­
buted?
7. What type motion is attributable to the objects (about their own
axis as well as about the a.xis of flight path)?
g. Is there any acceleration evident in their motion along flight path
axis?
9. Can the motion of the camera (panning and joggling) be allowed for
sufficiently to permit determination of the angular velocity of objects which
cross the field of view?
(Reference particularly the single object which
crosses field; photographer states that camera was held motionless while ob­
ject crossed field of view.)
10. Determine patterns of flight from position plots for each frame~ then:
a. Is there any recurring pattern in the relative position of the
objects?
b.
Do they maintain same relative positions in formation during ~
maneuvers,·particularly violent maneuvers?
c. Is relative position maintained coincidental with movement about
their axes?
d. If undulating motion is present among a number of objects llhich
are maintaining a semblance of formation, do those objects undulate in phase?
Ditto for tumbling motion.
e. Is there any indication of abrupt changes in direction of flight
path through fairly large angles (e.g., 90° or more during interval of 2 or 3
frames)?
DECLASSIFIED Authority NND 923007