The DUVE (Diffuse Ultraviolet Experiment) is a secondary experiment on the Geotail launch sponsored by NASA. This is the first in a series of
secondary payloads that are carried aboard whenever there is excess payload capability on
the primary mission. It remained bolted to the Delta-6925
second stage.
The objective of this experiment is to perform sensitive spectroscopy of diffuse
emissions from the interstellar medium to increase the understanding of the dynamics and
evolution of the interstellar medium and the Galaxy. The DUVE system was be turned on
after Geotail's deployment was complete. DUVE was flown strictly
on a non-interference basis with the primary mission and will not receive any ground
commands.
This experiment operated for about 4 hours when the battery power on the expended Delta-6925 second stage is
exhausted. Detector images (256 pixels spectral × 32 pixels imaging) were
telemetered from the spacecraft during ground station contacts. These images were
telemetered multiple times over many ground station passes, hence, many data dropouts were
able to be corrected. The end result was 19 images obtained from 4151 seconds of
observation time.
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