PDS logoPlanetary Data System
PDS Information
Find a Node - Use these links to navigate to any of the 8 publicly accessible PDS Nodes.

This bar indicates that you are within the PDS enterprise which includes 6 science discipline nodes and 2 support nodes which are overseen by the Project Management Office at NASA's Goddard Space Flight Center (GSFC). Each node is led by an expert in the subject discipline, supported by an advisory group of other practitioners of that discipline, and subject to selection and approval under a regular NASA Research Announcement.
Click here to return to the Photojournal Home Page Click here to view a list of Photojournal Image Galleries Photojournal_inner_header
Latest Images  |  Spacecraft & Technology  |  Animations  |  Space Images App  |  Feedback  |  Photojournal Search  

PIA01226: Two New Hot Spots on Io
NASA's Galileo spacecraft obtained this image of half of Io's disk in darkness on Sept. 19, 1997.
 Target Name:  Io
 Is a satellite of:  Jupiter
 Mission:  Galileo 
 Spacecraft:  Galileo Orbiter
 Instrument:  Near Infrared Mapping Spectrometer 
 Product Size:  1225 x 935 pixels (w x h) 
 Produced By:  JPL 
 Producer ID:  P49330B MRPS85089  
 Addition Date:  1998-03-26 
 Primary Data Set:  Galileo EDRs 
 Full-Res TIFF:  PIA01226.tif (307.3 kB)
 Full-Res JPEG:  PIA01226.jpg (67.14 kB)  

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

The Near-Infrared Mapping Spectrometer (NIMS) on Galileo obtained this image of half of Io's disk in darkness on September 19, 1997. This image, at 5 microns, shows several hot spots on Io, which are volcanic regions of enhanced thermal emission. The area shown is part of the leading hemisphere of Io.

Two new hot spots are shown and indicated in the image (New, and Shamshu). Neither of these hot spots were seen by NIMS or the Solid State Imaging Experiment, (SSI) prior to this observation, becoming only recently active. Several other previously known hot spots are labelled in the image. Galileo was at a distance of 342,000 km from Io when this observation was made.

The Jet Propulsion Laboratory, Pasadena, CA manages the 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://www.jpl.nasa.gov/galileo/sepo.

Image Credit:
NASA/JPL

Image Addition Date:
1998-03-26