Io - Voyager 1

A volcanic caldera on Jupiter's moon, Io

Image of possible volcanic calderas on Jupiter's moon Io. The caldera may be venting gasses, seen as the light patch at left center in this picture. The dark areas on the caldera floor are thought to be molten sulfur. The image was taken as Voyager 1 approached Io at a distance of about 130,000 km. (Voyager 1, P-21286)
Larger image: 170K

High resolution tiff file (3.0M)

Location & Time Information
Date/Time (UT): 1979-03-05
Distance/Range (km): 129,600
Central Latitude/Longitude (deg): N/A
Orbit(s): Flyby

Imaging Information
Area or Feature Type: volcano
Instrument: Narrow Angle Vidicon Camera
Instrument Resolution (pixels): 800 x 800, 8 bit
Instrument Field of View (deg): .424 x .424
Filter: N/A
Illumination Incidence Angle (deg): N/A
Phase Angle (deg): N/A
Instrument Look Direction: N/A
Surface Emission Angle (deg): N/A

Ordering Information
CD-ROM Volume: N/A
NASA Image ID number: P-21286
Other Image ID number: N/A
NSSDC Data Set ID (Photo): 77-084-01A
NSSDC Data Set ID (CD): N/A
Other ID: N/A


[NASA Logo] Authors/Curators:

Dave Williams,, (301) 286-1258
Code 690.1, NASA Goddard Space Flight Center
Greenbelt, MD 20771, USA

Jay Friedlander,, (301) 286-7172
Code 612.4, NASA Goddard Space Flight Center
Greenbelt, MD 20771, USA

NASA Official: Ed Grayzeck,

Last updated: 24 September 2015