(Analysis of Reports of Unidentified Aerial Objects)

This CIA-released copy of Project Blue Book Special Report No. 14 is dated 5 May 1955 and comes from the Air Technical Intelligence Center at Wright-Patterson Air Force Base. It is a statistical analysis of about 4,000 unidentified aerial object reports from 1947 through 1952, coded onto IBM punched cards with the help of a panel of scientists. The report concludes that such objects were highly unlikely to be technological developments beyond present-day scientific knowledge. It also found no valid evidence of physical matter.

WORK SHEET

Observer's Data Sheet Question	Punched Card Column	Code	Description
1.	1* Serial No.	Incident serial number
2
3
4 Serial No.	Insertion
5
6
2.	7 Day
8
9
10 Month
11 Year	Observed
3.	12
13 Day
14
15
2.	16 Month	Reported
17
18
3.	20 Month	Rec'd ATIC
21
22
4.	24 Hrs.	Time of observation Greenwich C. T.
25*
26 Time Units Duration	Duration of observation
5.	27
28* Latitude
29
30
5.	31 Longitude	Location
32*
33
34 Longitude
35
36
37 Cosine latitude
38
39
40

\* Denotes separate code key is needed.