| alternative label | 
        English | 
          Explorer 50 | 
          Published | 
          7 August 2017 13:32 | 
  
 | 
    | has broader | 
          | 
          IMP | 
          Published | 
          9 August 2017 15:19 | 
  
 | 
    | has narrower | 
          | 
          Charged Particle Measurements Experiment | 
          Published | 
          7 August 2017 16:44 | 
  
 | 
    | has narrower | 
          | 
          Cosmic Ray and Solar Particles | 
          Published | 
          7 August 2017 17:16 | 
  
 | 
    | has narrower | 
          | 
          Cosmic Ray Nuclear Composition | 
          Published | 
          7 August 2017 17:20 | 
  
 | 
    | has narrower | 
          | 
          Electrons and Hydrogen and Helium Isotopes | 
          Published | 
          7 August 2017 18:29 | 
  
 | 
    | has narrower | 
          | 
          Electrostatic Waves and Radio Noise | 
          Published | 
          7 August 2017 18:31 | 
  
 | 
    | has narrower | 
          | 
          Energetic Electrons and Protons | 
          Published | 
          7 August 2017 18:34 | 
  
 | 
    | has narrower | 
          | 
          Low-Energy Protons Measurement | 
          Published | 
          9 August 2017 16:31 | 
  
 | 
    | has narrower | 
          | 
          Magnetic Field Monitor | 
          Published | 
          9 August 2017 16:47 | 
  
 | 
    | has narrower | 
          | 
          Solar Plasma Electrostatic Analyzer | 
          Published | 
          14 August 2017 16:21 | 
  
 | 
    | has narrower | 
          | 
          Solar Plasma Faraday Cup | 
          Published | 
          14 August 2017 16:21 | 
  
 | 
    | has narrower | 
          | 
          Solid-State Detector | 
          Published | 
          14 August 2017 16:41 | 
  
 | 
    | hidden label | 
        English | 
          IMP 8 | 
          Published | 
          7 August 2017 13:32 | 
  
 | 
    | preferred label | 
        English | 
          IMP-J | 
          Published | 
          7 August 2017 13:32 | 
  
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