Main ionosphere satellite missions potentially relevant in the creation of the IWS by their particle data and wave recording.
|1||Atmosphere Explorer-A||1963–1966||255–916 km, i = 57°||Sensors for neutral and ionized species of atmospheric gazes.|
|2||Atmosphere Explorer-B||1966–1967||276–2725 km, i = 64°||Sensors for neutral and ionized species of atmospheric gazes.|
|3||Atmosphere Explorer-C||1973–1978||149–4294 km, i = 68°||Sensors for neutral and ionized species of atmospheric gazes, optical and UV spectrometers.|
|4||Atmosphere Explorer-D||1975–1976||154–3816 km, i = 90°||Sensors for neutral and ionized species of atmospheric gazes.|
|5||Atmosphere Explorer-E||1975–1976||156–2983 km, i = 20°||Sensors for neutral and ionized species of atmospheric gazes.|
|6||Dynamics Explorer 2||1981–1983||309–1012 km, i = 90°||Sensors for neutral and ionized species of atmospheric gazes, sensors for quasi DC magnetic field, DC and AC electric field.|
|7||San Marco D/L||1988–1988||262–619 km, i = 2°||Neutral wind probe, plasma probes, electric field probe.|
|8||Active (Intercosmos-24)||1989–1993||500–2500 km, i = 82°||Plasma probes, sensors for quasi DC electric and magnetic fields, wave probes, energetic particle probe, VLF-transmitter.|
|9||APEX||1991||440–3000 km, i = 82°||Sensors for neutral and ionized species of atmospheric gazes, electric beam and plasma injectors.|
|10||FREJA||1992||650–1800 km, i = 65°||Plasma probes, high data rate electromagnetic wave probes, energetic particle probes, UV imager.|
|11||GPS system||1994||20,200 km, i different, ≥24 satellite||For ionosphere research: total electron content (TEC).|
|12||ROCSat-1||1999–2004||600 km, i = 35°||Plasma probes.|
|13||CHAMP||2000–2010||454 km, i = 87°||Magnetic field probes, precise accelerometer.|
|14||Variant (on Sich-1M S/C)||2004–2005||280–650 km, i = 83°||Electric probes, electromagnetic wave probes, electric current probes, fluxgate magnetometer.|
|15||DEMETER||2004–2010||~710 km, changed to 660 km, i = 98°||Plasma probes, electric field and AC magnetic field probes.|
|16||Compass-2||2006–2007||~400 km, i = 79°||Electromagnetic wave probes in ULF-VLF bands.|
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