Vanguard I Satellite

(Original Caption) This is a model of vanguard I, the earth satellite that logs its 281, 495, 400th mile of space flight at 7:15A.M (est) today (March 17) two years after it was launched by a Martin-built Vanguard rocket, is 6.4 inches in diameter and weighs 3,25 pounds. Six solars batteries, the first successfully demonstrated by an artificial satellite, power a radio that's still transmitting useful data. Six 12-inch antennas radiate five-millwatt signals on a 108,03 megacycle frequency. Vanguard I's scientific firsts include the pear shape of the earth; smaller size of the earth's equatorial bulge; greater density of the earth's atmosphere above 400 miles; solar and the lunar effects on orbiting earth satellites, and variations of solar activity in the upper atmosphere. (Photo by George Rinhart/Corbis via Getty Images)
(Original Caption) This is a model of vanguard I, the earth satellite that logs its 281, 495, 400th mile of space flight at 7:15A.M (est) today (March 17) two years after it was launched by a Martin-built Vanguard rocket, is 6.4 inches in diameter and weighs 3,25 pounds. Six solars batteries, the first successfully demonstrated by an artificial satellite, power a radio that's still transmitting useful data. Six 12-inch antennas radiate five-millwatt signals on a 108,03 megacycle frequency. Vanguard I's scientific firsts include the pear shape of the earth; smaller size of the earth's equatorial bulge; greater density of the earth's atmosphere above 400 miles; solar and the lunar effects on orbiting earth satellites, and variations of solar activity in the upper atmosphere. (Photo by George Rinhart/Corbis via Getty Images)
Vanguard I Satellite
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Credit:
George Rinhart / Contributor
Editorial #:
530858292
Collection:
Corbis Historical
Date created:
March 17, 1960
Upload date:
License type:
Rights-managed
Release info:
Not released. More information
Source:
Corbis Historical
Object name:
vv8972.jpg
Max file size:
3257 x 3317 px (10.86 x 11.06 in) - 300 dpi - 3 MB