This is a full-scale replica of the Vanguard Magnetometer satellite, designated SLV-5 or Vanguard 3a. It was designed to study the Earth's magnetic field. The magnetometer sensor was at the end of the cylindrical boom to avoid interference from the other instruments. The satellite was launched on April 13, 1959 but failed to go into orbit due to loss of control during first stage separation. This replica was manufactured at the Naval Research Laboratory from original components. It was refurbished at the Goddard Space Flight Center prior to its transfer to NASM from NASA in March 1975. It was displayed in the Satellites Gallery (1976-1984).
Display Status
This object is on display in Space Science at the Steven F. Udvar-Hazy Center in Chantilly, VA.
Object Details
Country of Origin
United States of America
Type
SPACECRAFT-Uncrewed
Manufacturer
Naval Research Laboratory
Dimensions
Overall: 2 ft. 6 in. tall x 1 ft. 1 in. wide, 25 lb. (76.2 x 33.02cm, 11.3kg)
Other (antennae): 2 ft. long (60.96cm)
Materials
Metallic shell, phenolic mast
Alternate Name
Vanguard 3 satellite
Inventory Number
A19751407000
Credit Line
Transferred from the National Aeronautics and Space Administration
Data Source
National Air and Space Museum
Restrictions & Rights
Usage conditions apply
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