Information

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Energy Channels

The CPA detector measures electrons in two sets of channels, "LoE" and "HiE" which range from 30 keV to 2 MeV. It also measures positive ions (nominally protons) in two sets of energy channels "LoP" and "HiP" which range from approximately 75 keV to approximately 200 MeV. The nominal energy channels for electrons are the same for all CPA instruments. However, the nominal proton energy channels are different for each satellite.

The SOPA detector measures electrons from 50 keV to approximately 26 MeV, ions from 50 keV up, and heavier ions in various channels with energies in the MeV range. The nominal energy levels for electrons, protons, and heavy ions are the same for all satellites carrying the SOPA detectors.

The energy thresholds for the various detectors are given in the tables below
• CPA Electron Energies
• CPA Proton Energies
• SOPA Electron Energies
• SOPA Proton Energies
• SOPA Heavy Ion Energies

Satellites

• List of Satellites and the instruments they carried
  • 1976-059, CPA
  • 1977-007, CPA
  • 1979-053, CPA
  • 1981-025, CPA
  • 1982-019, CPA
  • 1984-037, CPA
  • 1984-129, CPA
  • 1987-097, CPA
  • 1989-046, SOPA
  • 1990-095, SOPA
  • 1991-080, SOPA
  • 1994-084, SOPA
  • LANL-97A, SOPA
• Satellite Locations
  These satellites are in geosynchronous orbit which has a nominal altitude of 6.6 Re (42,000 km), geographic latitude of 0 degrees, and a fixed (but arbitrary) longitude. The actual latitude, longitude, and altitude can vary somewhat.

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