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: http://www.cosmos.ru/tail/data/ska1/first.html
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The movie demonstrates a succession of 7 complete
measurement frames of SCA-1 on rotating Interball-1 spacecraft.
Diagram, inspired by Salvador Dali's paintings, shows all 64 viewing
directions and 15 energy steps as spheres.
Viewing directions are real viewing directions of the
instrument. The distribution of spheres along viewing direction is
linear unlike logarithmic distribution in reality.
The perspective is indicated by the change of dimensions of the spheres.
The color of sphere indicates the accumulated counts in respective phase
space bin (blue is for lowest counts, red is for highest counts).
Zero counts and counts below threshould are shown by empty circles.
Complete 3-D distribution is measured for about 10s. Rotation of
the spacecraft during one measurement frame is neglected.
The 70-sec. sequence shown is measured in the magnetosheath on
September 2, 1995, 1:44 UT.