Sioux Falls, South DakotaAugust 1960

1

] J |

4 1. DATE 2. LOCATION 12. CONCLUSIONS

1 a L2 < 0 Wes Balloon

11 August, 1360 Sioux Falls, South Dakota QO Probably Balloon

J 3. DATE-TIME GROUP 4 TYPE OF OBSERVATION CW wen

: 0 Was Aiicroft

FO —— O Ground- Visual O Ground-Rodor O Probably Aireroft

GMT 12/03502Z x5 Air Visual O Air-Intercept Radar DO Possibly Aircroft

1 5. PHOTOS . O Woes Astronomical

f O Yes O Probably Astronomicel

i ao Military O Possibly Astronemicel

i 7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE Gx Other etree |
| 3 Insufficient Dota for Evgluotion
i 3 minutes One Southerly O Unknown

o 10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS

4 wnite circular object of varying intensity Request for Sate'lite HYXIX data not

i 3 X brilliance of Jupiter, no scunu or tail, answered, Without track information

; ccserved due West of 4/C just a& ove the noripo..object cannot be classed as a Satelli
i Apneared to move South at the same elevation case. Listed as Insufficient Lala,
anu wen. out for perious of 5-10 seconds,

Reappeared moving South with the intensity
. weakening, Total observation duration 3 min,
Spee. believed faster th n manned A/c and
» thought tc be Satellite of Missile by the
oksa:ver,
ATIC FORM 329 (REV 26 SEP $2)