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. Author manuscript; available in PMC: 2021 Mar 22.
Published in final edited form as: Space Sci Rev. 2017 Aug 31;212:715–730. doi: 10.1007/s11214-017-0410-4

Fig. 2.

Fig. 2

Spacecraft Orbit-Aligned Position (SOAP) coordinate latitude (left) and longitude (right) in degrees of the modeled nightside emission surface that ICON FUV will image. The spacecraft moves in approximately linear motion in the longitudinal direction in this space.