Search Coil Spectra, Orbit 27, 1996/08/23

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Below is an auroral crossing made by the FAST satellite after the Mag boom deployment. The top plot is a spectragram of the 21" search coil signal in the 0 to ~16 kHz frequency range computed on-board. The bottom plot is the 0 - 2 MHz spectra. We interpret the emissions as near-lower hybrid frequency whistler waves in the auroral zone. The space craft position was ~70 deg N Lat., ~100 deg. W Long., and ~1700 km altitude.



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Michael Magpayo / magdaddy@sunspot.ssl.berkeley.edu