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SWAP gathered these plasma observations just after New
Horizons’ inbound crossing of Jupiter’s magnetopause late on
Day of Year (DOY) 56, through closest approach at about 32
Jovian radii, and back down the magnetotail to about 2,500
Jovian radii.
The schematic diagram (top panel) shows the plasma disk near
Jupiter and large plasmoids (colored) moving down the
magnetotail, past the New Horizons spacecraft. The five
spectrograms cover the five intervals numbered in the
schematic. In general, the magnetotail becomes more
disturbed with increasing variability in ion flux and flow
speed with greater distances. Starting on DOY 132, New
Horizons crossed back and forth between the magnetotail and
deep magnetosheath (white intervals in bottom panel). |
