Project Blue Book Special Report No. 14: Analysis of Reports of Unidentified Aerial Objects

e
Evtfution
'O- Balloon
lAstrononieal
2-Aircraft
3-Ligtil Ptienom.
(•Birds
S-Clouds, Dust, etc
6-lnsuflic. Into.
7-Psyctological
t-UnluMM
Total .
J awvAet/
Number
Certain
, t
0
a
0
0
0
2
2
2,
II
Doubtful
0
0
0
0
a
0.
0
4
Total
tf
6
0
0
0
1
7
A
l£
rerCail
Certain
( ) . ^
0.6
133
J13
Doubtful
»i7
n.n
Q$
O.O
0$
OA
26J_
Total
0,0
6.0
6-0
15. ?
133
Hi-
Number
:ertain
/
4
2
(?
5
Z
Doubtful
2
P
0
(j
,-?
Total
4
6
6
6
\
0
5
2
18
Percent
Certain
5.4
d 'V
(^0
•££
0.0
III
83.3
Doubtful
O.fi
ll.
o.o
O.D
0-6
Q.b
fit
Oi
114
Total
17$
n2
0-0
0-0
0.0
I T ?
/ ' • '
loo-
Number
;ertain
3
)
3
0
1
0
1
6
4
/
/4-
Doubtful
1
0
2
0
0
I
0
0

111
w
Doubtfu
6.0
Q.O
Q.0
o.o
0.0
tf?
Total'
M
d.0
71
S3
0.0
m
Number
Certain
i t
1
^)
33
J42*
4)
3J
1
o
o
?6
f
33
7
176
Percent
Certain
I3.L
l>$
O.I
Q.0
6*
Jl±
111
3.4
Doubtful
3.4
7.7
IS
0.6
0.A
fit
Oi
O.i
Total
in
Oi
OJ)
Ob
ir*
23
4.0
106.
Ji/i-Y
Nurt.tr
lertain
M.
123-
IX,
4
4
10
1
HZ
M.
513
Doubtful
3«f
SL2_
1
1
0
/in
Total
It-Z
133
2-H
/t
5
ys
ifcS
2 1
7o>2-
PetCent
Certain
II.3
ll-l
IS.1
(.5
•5
10
1.2.
A-T
75.?
Doubtful
43
/I-3
•5
• 1
CO
•8
• 1
Total
.4
a A
/It/&VST
Number
Certain
43
45
5
35
13
3-74
Doutitfu
41
xi
4 3
0
i
Q
1
0
5
1X3
Total
77
II
1
.6
dd
a.d
13-
JT.1
Total
/ f i
|.^
u7.4
)0d.
Ninoer
Certain
1$
5
0
0
0
/ 4
2.
60
Doubtful
12
ft
1
1
a
Q
0
\
Total
2,5
Z3
4
^y
/
^ .
ft
3
Percent
Certain
t1
ML
54-
o.O
43
ad
15.1
-23.
Doubtful
0-1
n-.l
43
/•/
l-l
a.d
Ad
II
Total
a/.8
3SX)
ff$
+3
S4
II
4-3
d.0
ii-2
33
/•
Number
Certain
I
5
3
2-
6
0
4
1
ff
Z
Doubtful
f
8
3
1
6
t
C
Q_
0
0
_?3-
Total
II
13
t
3
4
'1
2.
P « Cent
Certain
^ ^
4i
3-0
0.0
V V
it
SCI
Ooubtfu
0.4
U-1
f-1
SO
/'•?
do
Total
l&
lf.4
45
OJO
60
l-i
jg.4-
100-
Number
Certain
y
/
6
3
0
23-
3
4-1
Doubtfu
3
<?
0
0
0
6
0
d
d
Total
J
zo
14-
1
0
0
3
0
•22.
3
id
PerCoit
Certain
OJ
ft.1
t.i
o.b
6.6
4-. I
O.O
23A
+.1
U--I
Doubtful
O.d
6.0
Q.d
0.0
fi.d
Total
^ ^
Z/.2.
A5
0.0
0-6
4.L
0.0
33.4
100.
115