| Cosmic Ray | Explorer 3 | Van Allen, James |
| Micrometeorite | Explorer 3 | Manring, E. |
| Solar X-Ray and Ultraviolet Monitor | SOLRAD 8 | Kreplin, Robert |
| Thermal Ion Probe | DME-A | Donley, John, Maier, Eugene |
| Cylindrical Electrostatic Probes | DME-A | Brace, Larry |
| Electron Temperature | DME-A | Willmore, A. |
| Ion Mass Spectrometer | DME-A | Willmore, A. |
| Magnetic Ion-Mass Spectrometer | DME-A | Hoffman, John |
| Thermal Electron Probe | DME-A | Donley, John, Maier, Eugene |
| Energetic Electron Current Monitor | DME-A | Maier, Eugene |
| Ion Mass Spectrometer | AE-B | Brinton, Henry |
| Neutral Particle Magnetic Mass Spectrometer | AE-B | Reber, Carl |
| Satellite Drag Atmospheric Density | AE-B | Wulf-Mathies, Carsten |
| Pressure Gauges | AE-B | Newton, George |
| Electron Temperature and Density | AE-B | Brace, Larry |
| GSFC Magnetometer | Explorer 33 | Ness, Norman |
| Low-Energy Integral Spectrum Measurement Experiment | Explorer 33 | Serbu, Gideon |
| Ames Magnetic Fields | Explorer 33 | Sonett, Charles |
| Ion Chamber and GM Counters | Explorer 33 | Anderson, Kinsey |
| Electron and Proton Detectors | Explorer 33 | Van Allen, James |
| Plasma Probe | Explorer 33 | Bridge, Herbert |
| Solar Cell Damage | Explorer 33 | Slifer, Luther |
| Low-Energy Solid-State Telescope | IMP-F | Brown, Walter |
| Ion Chamber | IMP-F | Anderson, Kinsey |
| Cosmic-Ray Proton (R vs DE/DX) | IMP-F | Simpson, John |
| Low-Energy Proton and Electron Differential Energy Analyzer (LEPEDEA) | IMP-F | Van Allen, James |
| Cosmic-Ray Anisotropy | IMP-F | McCracken, Kenneth |
| Spherical Electrostatic Analyzer | IMP-F | Harrison, Francis |
| Solar Proton Monitoring Experiment | IMP-F | Bostrom, Carl |
| Electrostatic Analyzer | IMP-F | Ogilvie, Keith |
| Low-Energy Proton and Alpha Detector | IMP-F | McDonald, Frank |
| Cosmic-Ray Energy vs Energy Loss | IMP-F | McDonald, Frank |
| Triaxial Fluxgate Magnetometer | IMP-F | Ness, Norman |
| Electron and Proton Detectors | Explorer 35 | Van Allen, James |
| Energetic Particle | Explorer 35 | Anderson, Kinsey |
| AMES Magnetic Fields | Explorer 35 | Sonett, Charles |
| GSFC Magnetometer | Explorer 35 | Ness, Norman |
| Micrometeorite Flux | Explorer 35 | Alexander, Wesley |
| Plasma Probe | Explorer 35 | Bridge, Herbert |
| Low-Energy Integral Spectrum Measurement Experiment | Explorer 35 | Serbu, Gideon |
| Bistatic Radar Observations of the Lunar Surface | Explorer 35 | Peterson, A. |
| Selenodetic Studies | Explorer 35 | Kaula, William |
| Solar Cell Damage | Explorer 35 | Slifer, Luther |
| Optical Beacon System | GEOS 2 | Williston, R. |
| Laser Tracking Reflector | GEOS 2 | Plotkin, Henry |
| Radio Doppler System | GEOS 2 | Anderle, Richard |
| SECOR Range Transponder | GEOS 2 | McCall, J. |
| Radio Range/Rate System | GEOS 2 | Berbert, John |
| C-Band Radar Transponder | GEOS 2 | Stanley, J. |
| NASA Minitrack System | GEOS 2 | Kohout, John |
| Precipitating Electron Detector | GEOS 2 | Bostrom, Carl |
| Magnetometer | GEOS 2 | Armstrong, James |
| Solar Radiation Detectors | SOLRAD 9 | Kreplin, Robert |
| Step Frequency Radiometers | RAE-A | Stone, Robert |
| Radio Bursts Receivers | RAE-A | Stone, Robert |
| Capacitance Probe | RAE-A | Stone, Robert |
| Impedance Probe | RAE-A | Stone, Robert |
| Planar Electron Trap | RAE-A | Stone, Robert |
| Nonsystematic Changes of Air Density | AD-C | Jacchia, Luigi |
| Systematic Changes of Air Density | AD-C | Keating, Gerald |
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