This image shows energy spectra from the thermal electron detector TED1. The energy sweep runs exponentially from 0.08eV to 6.00eV. The line plot shows the actively adjusted skin potential in volts.

The skin potential of the detector is adjusted to try to move the peak to the center of the energy sweep. Unfortunately the count rate is not high enough for the peak detector to determine a consistent peak location except in the region around 850sec.

The narrow vertical stripes seen in the image are due to times when the detector sees increased counts while looking along the B field. Most of these appear to be flow downward along the field line.