nm and 103.8 nm.

The second analysed EUVI data set was recorded on June 1, when the separation angle between the spacecraft was $10.6^\circ$. This increased separation angle reduced the reconstruction uncertainty considerably. At the same time, this separation angle is still sufficiently small so that the correspondence between individual plumes in both EUVI images can still be unambiguously identified. The related spacecraft positions, observation and compression parameters are listed on Table \[tab:orbit\_plume\].

The reconstruction
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To reconstruct the 3D geometry of the plume, the first step is to identify the points along the plume axis and associate the corresponding plume pair in the two simultaneous EUVI images. To establish this correlation between the plumes, we extracted from each image the radiance profiles along corresponding epipolar lines [@Inhester:2006] in both images. Figure \[fig:inten\_epi\_plot\] gives an example for the April 7 data. The radiance distributions along the corresponding epipolar lines, which are approximated by the two long-dashed lines in Figure \[fig:euvi\_0407\], were smoothed by taking the running mean of the radiance over three pixels. The plume centers were selected according to the local radiance maxima and marked by the corresponding numbers.

For plumes 0, 1, 2 and 4 the association is 