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CHECK-LIST - UNIDENTIFIED FLYING OBJECTS le Dato 30 dune 1948 Incident # ia 2. Timo 11:25 A. M., to 1:27 PM and shortly thereafter 3. Location Hecla, South Dakota ls Namo of observor Norman Pfutsenreuter an 5. Occupation of obgorvor Chemical Engineer - Amateur Astronomer 6, Address of observor Heela, South Dakota - 7. Place of observation Between Watertown, S. D., & Webster, S. D, ‘ 8. Numbor of objects a § “4 9. Distance of object from observer y/s 10, Timo in sight Slightly over two hours lhl. Altitude 150 miles (7) 12. Speod Stationary ‘ 13. Direction of flight Stationary 1k Tactics Remained in bue/ppestiom then disintegrated 15. Soumad Wone 16, Sizo N/S = We Color Like polished aluminum cy AR PR ee ee Ae f ‘ 18. Shapo Changing : i iam fee) 19. Odor dotoctod None 20. Apparont construction seamed to be a cluster of parts He 21, Exhaust trails Particles of disintegrating mass left very faint trails of vapor 22, Woathor conditions Brilliantly clear (CAVU) - Wind velocity 3 MPH 23. Effoct on clouds No clouds 2h. Skotches or photographs Map showing locations of sightings 25. #Manner of disappoaranco ‘Disintegrated into smaller pieces _ 26, Romarks: Object appeared as oluster of parts which remained fairly stationary and constant for some two hours when it underwent a rather slow change in shape. A large chunk fell off, Within next 2-1/2 minutes the antine spot started to ery shear, Asie trareny Three 1 parts os over i i