A new Enceladus base map and global control network in support of geological mapping
2015
: From its active south polar terrain, to
its heavily tectonized equatorial regions, to its mid-
latitude viscously relaxed craters, Enceladus presents a
diverse set of geologic provinces that record a complex
geologic history. Fully unraveling the evolution of
Enceladus’ surface requires integrating disparate ob-
servations and insights from across the satellite into a
single self-consistent geologic history–a task that re-
quires global geologic mapping. In support of a new
global mapping effort, we have begun preliminary
work on an updated global control network and base
map for Enceladus. The new, technically robust, data-
rich, well-documented network and base map will ena-
ble high-fidelity mapping of Enceladus and enhance
future investigations of the satellite.
and low phase images is therefore challenging. Com-
paring and mapping geographically co-located images
therefore necessitates the development of a robust con-
trol network.
Basic Approach: Our preliminary global control
network is being created from ~370 Cassini Imaging
Science Subsystem (ISS) images with resolution better
than 1 km/px. We initially focus on clear and green
filter images (651 and 569 nm effective wavelength,
respectively), supplemented by other filters in a limited
number of regions with low image coverage. Addition-
al filters will be included as resources permit. All im-
ages were ingested into ISIS3 for processing and con-
trol network development.
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