PROJECT BLUE BOOK

UNIDENTIFIED FLYING OBJECT CASE FILES · 1947 – 1969

CASE REFERENCE6960339

DATE OF SIGHTINGFebruary 1958

REPORTED LOCATIONOhio River Indiana

FRAMES3

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Transcribed Frames

FRAME 001 / 003paddle-gpu-200dpi

PROJECT 1C073 RECORD CARD
I. DATE 2. LOCATION 12. CONCLUSIONS
Was Balloon
4 Feb 58 Ohio River, Indiana xkza 00 Probably Balloon
4 TYPE OF OBSERYATION Possibly Balloon
3. DATE-TIME GROUP
Local_. Ground-Visual Ground-Radar 0 Was Aircraft
Probably Aircraft
NA AirVisual Air-intercept Radar D Possibly Aircraft
GMT
5. PHOTOS 6. SOURCE 0 Was Astronomical
Yes 0 Probably Astronomical
QNo Phys Soec. Civilian (2) Passibly Astronomical
4No SbeC.
7. LENGTH OF OBSERVATION 7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS NUMBER OBJECTS 9. COURSE ka Othermagne Othermag
000 100 Insufficient Data for Evaluation Insufficient Data for Evaiuation
Unknown Unknown
one NA
10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS 11. COMMENTS
A rnd obj, Balf plastic & half A rnd obj, Balf plastic & half fibre The device was found to be a be a
was picked up along up along the Ohio River magnetometer for remote magnetometer for remote measure
in Indiana by 2 hunters. It eventually ment of strength of the
got to OSI, who urned it into ed it into earth's horizontal magnetic earth's ital magnetic
ATIC for analysis. field,
.
2
.

FRAME 002 / 003paddle-gpu-200dpi

?
Device Picked River in Indiana
Comdr, 5th District, AFCIN-4E4 4 Feb 58
OSI
l. The device e is a magnetometer for remote measurement of the strength of
the eerth's magnetic field. The senaing element being
mounting shows that it measures supported by & pendulus
earth's the strength of the horizontal component the
magnetic field.
2. It was probably carried to a high altitude by a balloon and then
transmitted field strength me ments by telemetry to a station.
G. T. GREGORY G. T. GREGORY
Capt, USAF
AFCIN-4E4
The The Above iTem Above ITen reTurned To reTurned To
5 lb disTricT OS1
5 Feh 5 8, AloNg
WiTh eVAlUATION

FRAME 003 / 003paddle-gpu-200dpi

TItE EARTH'S MBGNETIC FIELD.
I7 AAs Pres13sBly WAS PROBABLY CARRIED CARRIED 7O 70
A. HIGH ALTITUDE Y BY A BALLOON AND AND
TI+E=N TIt=N TRANSH 77E0 FIELD S7RENGZH FIELD STRENGTK
MEAS MEA SUREMEN7S BY 7ELEMETRY 70 70 4
GROUND S7ATLON. S→AAL ON 3.
WHITE
4=2d