Fig. 2

image

CME at two times, 26 January 2020 at 7 UT (left) and 10 UT (right), as seen in WISPR Inner telescope. The inner edge (left side) is 13.5° from the Sun center. The cavity as well as striations along the length of the flux rope are evident. The back of the cavity is indicated by black arrows. Denser material at the back of the flux rope is also evident. The images are Level-3 data with the background removed (see text). The white streaks are caused by sunlight reflecting off debris created by dust striking the spacecraft. The triangular feature near the inner edge of the images is an artifact resulting from pixel saturation.

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