PIA01663: Highest Resolution Mosaic of Io

Highest Resolution Mosaic of Io


This global mosaic shows the highest resolution Galileo images available of Jupiter's moon, Io. North is to the top of the picture. The images, obtained at low sun illumination angles (high sun-target-spacecraft angles)which emphasize topographic shadows, were taken by the Solid State Imaging (SSI) system on NASA's Galileo spacecraft over the course of several orbits. The grid identifies the names and locations of several of Io's main features. Several active but as yet unnamed volcanic features are indicated by arrows. While volcanic centers are rather evenly distributed, almost all of the active plumes and long-lived hot spots seen over the span of NASA's Galileo mission at Jupiter or during the flyby's of NASA's Voyager spacecraft in 1979 are within 30 degrees of the equator.

Background Info:

The Jet Propulsion Laboratory, Pasadena, CA manages the Galileo mission for NASA's Office of Space Science, Washington, DC.

This image and other images and data received from Galileo are posted on the World Wide Web, on the Galileo mission home page at URL http://solarsystem.nasa.gov/galileo/ . Background information and educational context for the images can be found at http://www.jpl.nasa.gov/galileo/sepo .

Cataloging Keywords:

Name Value Additional Values
Target Io Jupiter, Sun
System Jupiter
Target Type Satellite Planet, Sun
Mission Galileo Voyager
Instrument Host Galileo Orbiter
Host Type Orbiter Flyby Spacecraft, Probe
Instrument Solid-State Imaging (SSI)
Extra Keywords Grayscale, Plume, Shadow, Volcano
Acquisition Date
Release Date 1999-01-18
Date in Caption
Image Credit NASA/JPL/University of Arizona
Source photojournal.jpl.nasa.gov/catalog/PIA01663
Identifier PIA01663