28976202.pdf

|  1. DATE | 2. LOCATION | 12. CONCLUSIONS  |
| --- | --- | --- |
|  18 December 1957 | Yakima, Washington | ☐ Was Balloon ☐ Probably Balloon ☐ Possibly Balloon  |
|  3. DATE-TIME GROUP Local ___________ GMT 19/0108Z | 4. TYPE OF OBSERVATION XX Ground-Visual ☐ Ground-Radar ☐ Air-Visual ☐ Air-Intercept Radar | ☐ Was Aircraft ☐ Probably Aircraft ☐ Possibly Aircraft  |
|  5. PHOTOS ☐ Yes XX No | 6. SOURCE Civilian | ☑ Was Astronomical Meteor ☐ Probably Astronomical ☐ Possibly Astronomical  |
|  7. LENGTH OF OBSERVATION 2 seconds | 8. NUMBER OF OBJECTS one | 9. COURSE SW  |
|  10. BRIEF SUMMARY OF…

18 1901082
1 Witness 18 57
Y. A. Wash
Not first cont. 57

E
RD261
SQE261 YDA267 XYA122 XDF246DMA267
OO RJEDDN RJEDSO RJEPHQ
DE RJWPDM GPA
O 1925152
FM 25CADD COC
TO RJEDDN/COMDR NORAD
RJEDSO/COMDR AIR TECHNICAL INTELLIGENCE CENTER
RJEPHQXDIRECTOR OF INTELLIGENCE HQ USAF
ZEN/COMDR 25 CADD
/U M C L A S/25CADD TAC L-37.

I 1. LARGE RED FIREDMPL
2. END OF PENCIL HELD AT ARMS LENGTH
3. RED
4. ONE
5. NO
6. NEG
7. LEAVINV CONTRAILS
8. NEG
9. NEG

PAGE TWO RJWPDM GPA

-STP
Fireball
1) 2) 4E4
3) 4-4X20
4) 1.0

II 1. APPEARED SUDDENLY AS A BRIGHT BALL OF FIRE
2. UNK
3. UNK
4. ARC MOVING SOUTH WEST
5. EXPLOSION AND BALL OF SMOKE
6. OBJECT APPOX TWO SECONDS. SMOKE LASTED UNTIL SUNDOWN

III 1. GROUND
2. NO
3. NAVY-52822 UNITED ARLINES -793

IV 1. 2108Z 19 DEC, 1937 0108-4 = 1704
2. DUSK

V YAKINA, WASHINGTON
AIRPORT TOWER

VI 1. MR
CAA

YAKINA WASHINGTON
CAA TOWER OPERATOR
RELIABLE REPORTS
2. NONE

PAGE THREE RUPPED SGA

VII 1. NEG
2. CALM
3. SPECTD 14 OCT
4. 32 MILES
5. SCTS

S NEG
VIII 1. NEG
IX 1. NONE
X 1. NONE

REPORTED WHICH WOULD CORRELATE WITH OBJECT.
XI 1. S REPORTS HERE RECEIVED FROM SEATTLE ARTC AT APPROXIMATELY 2225Z = 1625
17 DEC 57. NVAY 52802 IN THE VICINITY OF MEDFORD SIGHTED LARGE RED
FIREBALL AT 2128Z 17 DEC 57, 15 OR 20 MILES WEST OF MT. SHASTA, CALIF.
LEAVING CONTRAILS ON A NORTHWEST HEADING. UNITED AIRLINE 793 IN
MEDFORD VICINITY AT APPROX 2128Z SIGHTED LARGE RED BALL SOUTH OF MT.
ADAMS TRAILING CONTRAILS. AIRCRAFT OVER ELLENSBURG, WASH. SIGHTED
OBJECT AT APPROX 2128Z WHICH APPEARED TO EXPLODE ON THE MONATASH
RIDGE. 15 MILES WEST OF ELLENSBURG. …