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The Hawkeye satellite, with its almost 90° inclination and 21 R E apogee, provided the most extensive sampling to date of the exterior cusp as well as the high-latitude magnetopause. Using a combination of plasma, magnetic field, and plasma wave observations sampled between 1974 and 1978, we have identified 211 crossings of the exterior cusp, of which 175 have solar wind pressure and 136...
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