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Hawkeye 1 Explorer 52 Injun-F Neutral Point Explorer Spacecraft Family

Hawkeye 1, also known as Explorer 52, Injun-F, or the Neutral Point Explorer, was a University of Iowa NASA spacecraft launched on June 3, 1974. Its plasma-wave receiver, triaxial fluxgate magnetometer, and low-energy proton-electron analyzer surveyed the polar cusp, auroral zone, bow shock, magnetopause, and neutral-point region of Earth’s magnetosphere during nearly four years of operation before re-entry on April 28, 1978.

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Identity

Aliases
Hawkeye 1Hawkeye-1Explorer 52Explorer LIIInjun-FNeutral Point Explorer1974 040AHawkeye 1 spacecraft
Family Name
Hawkeye 1
Full Name
Hawkeye 1 Explorer 52 Injun-F Neutral Point Explorer Spacecraft Family
Roles
orbiterobservatoryresearch
Status
retired
Type
spacecraft

Details

Description
Hawkeye 1, also known as Explorer 52, Injun-F, or the Neutral Point Explorer, was a University of Iowa NASA spacecraft launched on June 3, 1974. Its plasma-wave receiver, triaxial fluxgate magnetometer, and low-energy proton-electron analyzer surveyed the polar cusp, auroral zone, bow shock, magnetopause, and neutral-point region of Earth’s magnetosphere during nearly four years of operation before re-entry on April 28, 1978.
First Flight Year
1,974
Last Flight Year
1,978

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Creation Time
August 14, 2026 at 08:06:04 UTC
Updated Time
August 14, 2026 at 08:06:04 UTC