
Annotated Version
Click on the image
During two close flybys of Saturn's moon Enceladus in 2008, the cameras on
NASA's Cassini acquired several very high-resolution images of specific
regions of the south polar terrain. These images have been used to
construct this detailed mosaic of the moon's famous tiger stripe fractures.
A special spacecraft maneuver dubbed "the skeet shoot" was employed to
make smear-free imaging at close range possible. The ground track of the
camera's pointing was selected to cut swaths across three tiger stripes,
or sulci, the prominent rifts through which jets of water vapor and ice
particles are actively jetting. The swaths during the two flybys were
chosen to pass over specific locales on the surface. In total, six of the
eight regions on or near the tiger stripes known to be warm sites of
previously observed jet sources were imaged.
This clear filter mosaic includes all of the skeet-shoot images overlain
on images acquired at lower resolution of regions near Damascus, Baghdad
and Cairo Sulci. The annotated version identifies the locations of the six
targeted jet source sites (solid yellow circles) as well as the
footprints, or outlines, of Cassini's narrow-angle camera views of the
surface during the skeet-shoot maneuvers on August 10 (green squares) and
October 31 (orange squares). Although visible in other lower-resolution
images, jet source site VIII (dashed yellow circle) was not targeted in
the skeet shoot. Within the colored squares, image scales range from 9
meters (30 feet) to 39 meters (129 feet) per pixel.
The Cassini-Huygens mission is a cooperative project of NASA, the European
Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory,
a division of the California Institute of Technology in Pasadena, manages
the mission for NASA's Science Mission Directorate, Washington, D.C. The
Cassini orbiter and its two onboard cameras were designed, developed and
assembled at JPL. The imaging operations center is based at the Space
Science Institute in Boulder, Colo.
For more information about the Cassini-Huygens mission visit
http://saturn.jpl.nasa.gov/. The Cassini imaging team
homepage is at http://ciclops.org.