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Table 1 Operation modes of HFA

From: High Frequency Analyzer (HFA) of Plasma Wave Experiment (PWE) onboard the Arase spacecraft

Mode Region Input Output Frequency range Steps Interval (s)
EE-UV Apogee Eu, Ev <|Eu|2> 10 kHz–10 MHz 479 8
<|Eu|2> 10 kHz–10 MHz 479 8
EE-LR Apogee Eu, Ev <|EL|2> 10 kHz–10 MHz 479 8
<|ER|2> 10 kHz–10 MHz 479 8
EB Perigee Ev, B γ <|Ev|2> 10 kHz–10 MHz 479 8
<|B γ |2> 10 kHz–100 kHz 160 8
<E *v B γ > 10 kHz–100 kHz 160 8
PP-1 Plasmapause Eu, Ev <|Eu|2 >+<|Ev|2> 10 kHz–400 kHz 200 1
PP-2 Plasmapause Eu, Ev <|Eu|2 >+<|Ev|2> 100 kHz–1 MHz 200 1