efa9e8f7313c8be3

28964390.pdf

NARA·NARA_PBB_597821_pdfs-2·pdf·24.8 MB·5 pages

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1.4
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Cross-references
2.0
Provenance
3.7
Info density
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OCR'd text preview (5 of 5 pages)

Source: mistral_ocr · confidence ~95%

page 1
PROJECT 10073 RECORD CARD

|  1. DATE 17 Dec 55 | 2. LOCATION Oklahoma City, Oklahoma Olathe, Kansas Lincoln, Nebr | 12. CONCLUSIONS ☐ Was Balloon ☐ Probably Balloon ☐ Possibly Balloon  |
| --- | --- | --- |
|  3. DATE-TIME GROUP Local GMT 18/0934Z | 4. TYPE OF OBSERVATION ☑ Ground-Visual ☐ Air-Visual ☐ Ground-Radar ☐ Air-Intercept Radar | ☐ Was Aircraft ☐ Probably Aircraft ☐ Possibly Aircraft  |
|  5. PHOTOS ☐ Yes ☑ No | 6. SOURCE civilian | ☑ Was Astronomical Meteor ☐ Probably Astronomical ☐ Possibly Astronomical  |
|  7. LENGTH OF OBSERVATION unknown | 8. NUMBER OF OBJECTS many | 9. COURSE 
page 2
Multi
07 30 08 49
ac
591177
called 0
08127
ae

RC48
WPF057 YNA047TNGA016H
PP RJEDEN RJEDWP RJEPHQ RJEDKF
DE RJEDNG 2A
P 180700Z
FM COMDR 31ST ADIV DEF SNELLING AFS MINN
TO RJEDEN/COMDR ADC ENT AFB COLO
RJEDWP/COMDR ATIC WP AFB OHIO
RJEPHQ/DIR OF INTELL HQ USAF WASHDC
RJEDKF/COMDR CADF GRANDVIEW AFB MO
BT.

17
3
4-4x2a
JC
page 3
![img-0.jpeg](img-0.jpeg)

A child's painting of the great Kansas-Oklahoma fireball of 17 December 1955. It lit the sky up as bright as day. Because fireballs this big are rare and occur without warning, scientists must depend on reports from the general public. No really great fireball has ever been photographed in flight. This is why this painting has scientific value. Two views are shown here. In one the fireball is coming across the sky. The other (left) shows the explosion at the end. Even rough sketches made on the spot are valuable to fireball study.

What does a scientist do with repor
page 4
/UNCLASSIFIED/ADCC 10212 REF MSG CPNS GUS OPUS REPORT 430TH AVE
SQ OMAHA NEBR DTG 18/0334Z DEC 55 PD FOLLOWING ADDITIONAL
INFORMATION COLLECTED BY ADCC SUBMITTED FOR YOUR INFORMATION PD
ABLE ONE DASH STREAK IN SKY ALSO A BIG FLASH ABLE EIGHT DASH
BROKEN SOUND ECHO DASH FOUR POSITIONS KM4611 KL2505 KL0335 KL0208
PD ADCC REMARKS DASH THE LINCOLN NEBR JOURNAL AND LINCOLN
RAILROAD YARD REPORTED LOUD TO MODERATE EXPLOSIONS IN AREA AT
REPORTED TIME PD A BEACHCRAFT FLYING AT 2500 FT IN KANSAS CITY
AREA REPORTED TO 738TH AC&W SQDN OLATHE KANSAS THAT IT WAS ALMOST
HIT BY SOME RED AND GREEN FLARES P
page 5
![img-1.jpeg](img-1.jpeg)
Most people know that you see and hear a high-flying jet plane at different spots in the sky. This is because sound travels so much slower than does light. However some people report a "second sound" that seems to come directly from the jet. This may be related to the fireball problem.

![img-2.jpeg](img-2.jpeg)
The great daylight fireball of Sikhote-Aline (Russia) brought no reports of sounds. It did create induced currents in wires near the ground.

![img-3.jpeg](img-3.jpeg)
The great fireball of March 24, 1933, was seen from Texas to Colorado. It left this luminous

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