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Project Blue Book Special Report (second copy)
Internet Archive · 309 pages · text from the file's own layer
This is Project Blue Book Special Report No. 14, "Analysis of Reports of Unidentified Aerial Objects," Project No. 10073, dated 5 May 1955. The study reduced about 4,000 sighting reports received by the U.S. Air Force between June 1947 and December 1952 to IBM punched cards and analyzed them statistically, including chi square tests comparing knowns with unknowns. It concludes that the reports very probably do not represent technological developments beyond present scientific knowledge, and it notes that no case produced physical evidence.
“The Sun”19 pages
- p. 3 …Advanced Study of the Data 16
Position of the Sun Relative to the Observer 16
Statistical…
- p. 5 …Object Sightings by Angle of Elevation of the Sun, Intervals
of 10 Degrees of Angle . • , 57…
- p. 14 …In addition, the inclusion of
certain data relating to the evaluation and bearing of the sun…
- p. 20 …for the uncommon natural
phenomena associated with light reflections or refractions, such as mirages,
sun dogs…
- p. 24 …Position of the Sun Relative to the Observer
The first thing that was done was to…
- p. 63 …The difference between the longitudes of the sun
and the observer was taken, and.called the…
- p. 65 …90 +60 +30
Angle of Elevation of The Sun
-30 -60 - 9 0
FIGURE 4 0…
- p. 66 …is greater than the declination
of.,the sun at the summer solstice, so that it would…
- p. 68 Group 5 — Night sightings for which the sun was more than 10°
below the horizon and…
- p. 84 …the sun was either above the horizon or less than
10° in elevation below the horizon…
- p. 85 …It is
interesting to note that two of these were established as mock suns on the…
- p. 91 …It reappeared and was
seen flying back and forth across the sun. At one time an…
- p. 266 …SKETCH C
The sun and the noon are shown below as they appear in their correct…
- p. 279 …IF you saw the object during DAYLIGHT, TWILIGHT, or DAWN, where was the SUN located as…
- p. 280 …Did you observe the object through any of the following?
a. Eyeglasses Yes No
b. Sun…
- p. 299 …These cards (and the corresponding WORK SHEETS) contain data from
several sources. Columns referenced to the…
- p. 300 …the
Sun
5.
15.
U7*
U8
U9.
5o
5l^
53
5U
55^
56*
Group Classification
Sun…
- p. 301 …00°
CODE U8-51 SUN BEARING ANGLE
(Calculated)
CODE 5l SUN BEARING ANGLE
X
Y
0…
- p. 307 …the
Sun
-
5.
15.
U7*
U9.
50
51*
52*
53
5U
55*
56*
Group Classification
Sun…
Ol
ingsSightject
XI
O
°
J5Numl
300
275
250
225
200
175
150
125
100
75
50
25
-90
All object sightings
Sun rise
Unknown object, sightings
Suniset
-60 -30 + 30 +60 +90 +60 +30
Angle of Elevation of The Sun
-30 -60 - 9 0
FIGURE 4 0 FREQUENCY OF OBJECT SIGHTINGS BY ANGLE OF ELEVATION OF THE SUN, INTERVALS
OF 10 DEGREES OF ANGLE
A-7336
About this file
Report, cited by the archive. The PDF is mirrored here; the original link is under it. 309 pages are in the text index: search them above, or from the library's search.