Project Blue Book File on Tremonton Film, Utah, 1952

Text

This text came with the file. It may have mistakes. When the text and the image disagree, the image is right.

-
·Photogram:netr1c
-3-
Serial
C12
~is ot "Utah" Film
motion.
Th
decrease in average angular veloc:1ty between 3(e.) and 3(b) could
be due to the obJeot's hav1Dg regressed betveen f'ilminge J\lat as was reported
by Bewhouse.
Also the average image diameter decreases about 3~ ayer the
entire tillll, 1ndicat1Dg a possible over-all regression of the obJects.
The tollow1.ng tabulation imlicates the hypothetical transverse companent
ot relati-,e Tel.ocitie■ and accelerations at various distances. It is noted
that th transver e Telooity may be cmq a fraction ot the total velocity so
that the numbers act\tal..q indicate m1n1mn Y&lues.
It the obJeat'a
Its transverse
Its transverse ac-
Velocity ot
distance vae
veloai~ was
celeration vas
single obJect was
100 teet
o.6, tt/sec
0.36 n/sec2
3!'8 ft.sec
01"
o.44 Jll'h
or 0.011 g
or
2.7JJJPh
1000 teet
6.~ tt/sec
3.6
-rt/sec2
39
-rt/sea
or
4.
mph
or 0.11 8
or
27
mph
2000 teet
13
tt/sec
7.2
ft/sec2
78
-rt/sec
or
8.8 mph
or 0.22 g
or
54
mph
lllile
23
mph
0.56 8
135
1IQ}h
5 miles
u,
2.8
s
670
J!U)h
•
10 miles
230
mph
5.6
I
1300
m,ph
The objects in the "Utllh" and "Montana" tilE can ~
be correlated on
the basis at two :rather weak points. First, their structure, er rather lack
at it, 1s fl1m1Jar.
Tims as shown 1n the "blow-ups", figures 6a and 6b, there
are no recognizable ditterenoes between them*• Seccnd, the objects on the
"Montanan t1lm are numit'est~ a s~le pairJ CJD the "Utah" tilm perhaps 3~
ot the trames ahoW ehstera at objects aeemiJlsq also grouped in pairs. See
figures 6c and. 5b.
The veather report was obtained by- the author tram the Ail'port Statian at
Salt take City. The nearest station Yith available data is Corinne wich re­
ported a. maxt.mnm t
rature ot 84°, a m1n1'DI\Jm at 4.7° and no precipitation.
A high pressure cell
the Pacific Northwest spread over Northern Utah dur·
1Dg ~
2, the pressure at Tl'elllO.Uton would hne
ri.811:lg trend, the vis1­
bilit)r good, and the v1.n4s relatively light. The absence ot clouds and the
apparentq excellent Visiblllt7 shown on the ti
wow4 seem to be 1n agree­
ment with this report. ~ use at references (2) and (3), the sun's
az
th :Nl.32°E &ltitude 650 was oaupgted.
Ro shadows were anilable to coa:tim
the time ot f1Jm1ng.
* The 11MSea on the "Utah" film appear to be a little br1ghter.
However,
possible nriations in dEJV'elopllent techniqaes wotild not allow qunti­
tative ~is in this regazid.
DECLASSIFIED Authority NND 923007