pl23_theb1347.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23theb1347jpg-0Description
Proton vector magnetometer used to measure the absolute value of magnetic field
Credit
NOAA Office of NOAA Corps Operations
Display Date
Ca. 1967
Location
Virginia, Fredericksburg
Collection
Historic Coast & Geodetic Survey
Keywords
Geophysics
Geomagnetism