
| SPUTNIK IV
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Sputnik IV was launched at Balkanur, USSR, May 14, 1960. Upon reaching orbit, the 3,200 lb. satellite began transmitting data back to Earth about a dummy "Astronaut" placed aboard the unmanned spacecraft.
On June 15, Ground Control at Balkanur began to program the maneuver that would fire retro-rockets and bring the spacecraft back to Earth. The incline of the rocket was inaccurate, however, due to the failure of the ship's orientation system, and the vehicle assumed an elliptical orbit. Sputnik IV could not be recovered. Transmission of temperature and pressure data from the erratic satellite continued until September of 1962, when the spacecraft began a slow plunge to Earth. At about 4:30 am Central Standard Time on September 5,1962, a piece, 20 cm by 8 cm, hit almost precisely on the center line of North 8th Street, near the intersection of Park Street, in front of the Rahr West Art Museum (see brass ring in the street). The impact of the piece imbedded it three inches in the blacktop pavement. Later, small charred fragments were found on a nearby church roof, but despite an intensive search, no other fragments of Sputnik IV were ever found. Two Manitowoc patrolmen, Marvin Bauch and Ronald Rusboldt, discovered the fragment and turned it over to authorities. Officials at NASA and the Smithsonian Institute identified threads arranged in the metric system, and the detection of two minerals created by the heat and friction of re-entry; wustite and akaganeite. When the fragment was first offered to the Soviets, they declined its return, but eventually accepted the piece in a quiet ceremony.
On September 17, 1963, the Manitowoc Common Council accepted two replicas of the Sputnik IV made by NASA. Two months later members of Lodge 516, International Association of Machinists, Manitowoc, arranged to permanently mark the spot on North 8th Street where Sputnik IV landed.
The Brass Ring that marks the spot on
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