PIA08976: Tirawa on the Terminator


Tirawa on the Terminator

Caption:

Rhea sports an immense impact scar on its leading hemisphere, like several other major Saturnian moons. The impact basin, seen above center on the day-night dividing line, or terminator, is named Tirawa, and is about 360 kilometers (220 miles) across.

North on Rhea (1,528 kilometers, or 949 miles across) is up.

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on June 1, 2007. The view was acquired at a distance of approximately 1.6 million kilometers (1 million miles) from Rhea and at a Sun-Rhea-spacecraft, or phase, angle of 55 degrees. Image scale is 10 kilometers (6 miles) per pixel.

Background Info:

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/home/index.cfm . The Cassini imaging team homepage is at http://ciclops.org .

Cataloging Keywords:

Name Value Additional Values
Target Rhea Saturn, Sun
System Saturn
Target Type Satellite Planet, Sun
Mission Cassini-Huygens
Instrument Host Cassini Orbiter
Host Type Orbiter
Instrument Imaging Science Subsystem (ISS)
Detector Narrow Angle Camera
Extra Keywords Grayscale
Acquisition Date
Release Date 2007-07-04
Date in Caption 2007-06-01
Image Credit NASA/JPL/Space Science Institute
Source photojournal.jpl.nasa.gov/catalog/PIA08976
Identifier PIA08976