LOFTI 2

An image of the LOFTI II satellite from the archives of the National Museum of the U.S. Navy
LOFTI 2B

LOFTI 2 ("LOw Frequency Trans Ionospheric Satellite", also styled LOFTI II) refers to a pair of United States Naval Research Laboratory satellites launched in 1962 and 1963 as a follow-on to the LOFTI-1 mission. The program's mission was to study how the ionosphere affected very low frequency transmissions. Both were 20-inch diameter aluminum spheres equipped with extendible antennas.[1]

  1. ^ Electro-Optical Systems (1966). Richter, Henry (ed.). Instruments and Spacecraft, October 1957-March 1965: Space Measurements Survey. Scientific and Technical Information Division, National Aeronautics and Space Administration. pp. 239–240, 430.