Explorer I Characteristics



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Name of Image: Jupiter C/Explorer I Characteristics
MIX #: 0200147
NIX #: MSFC-0200147
Date of Image: 1958-01-31
Category: Early Rockets

Full Description: This illustration shows the main characteristics of the Jupiter C launch vehicle and its payload, the Explorer I satellite. The Jupiter C, America's first successful space vehicle, launched the free world's first scientific satellite, Explorer 1, on January 31, 1958. The four-stage Jupiter C measured almost 69 feet in length. The first stage was a modified liquid fueled Redstone missile. This main stage was about 57 feet in length and 70 inches in diameter. Fifteen scaled down SERGENT solid propellant motors were used in the upper stages. A "tub" configuration mounted on top of the modified Redstone held the second and third stages. The second stage consisted of 11 rockets placed in a ring formation within the tub. Inserted into the ring of second stage rockets was a cluster of 3 rockets making up the third stage. A fourth stage single rocket and the satellite were mounted atop the third stage. This "tub", all upper stages, and the satellite were set spirning prior to launching. The complete upper assembly measured 12.5 feet in length. The Explorer I carried the radiation detection experiment designed by Dr. James Van Allen and discovered the Van Allen Radiation Belt.
(MRPO) MRD/SPD Discipline(s): n/a
(MRPO) Subject Type: n/a
Keywords: Jupiter C, Explorer I
MSFC Negative Number: 0200147
Reference Number: MSFC-75-SA-4105-2C
n/a n/a



Public domain This file is in the public domain because it was created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)

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File name explorer_i_characteristics.jpg
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