Io - Voyager 1

View of Jupiter's moon Io from 800,000 km

Voyager 1 image of Jupiter's satellite, Io, taken from a distance of 800,000 km. Io appears to be the most volcanically active body in the solar system. The circular area at the center of the image is the volcanic region Prometheus, at 2 S, 153 W. The diameter of the dark central area is about 200 km. Below that to the left is Culann Patera, and below that Mycenae Regio. Io is 3,600 km in diameter. North is at 12:30. (Voyager 1, FDS 16368.36 )
Larger image: 364K

High resolution tiff file (1.0M)

Location & Time Information
Date/Time (UT): 1979-03-04 T 19:26:10
Distance/Range (km): 800,094.8
Central Latitude/Longitude (deg): 00.,160.
Orbit(s): Flyby

Imaging Information
Area or Feature Type: global view, volcano, patera
Instrument: Narrow Angle Vidicon Camera
Instrument Resolution (pixels): 800 x 800, 8 bit
Instrument Field of View (deg): .424 x .424
Filter: violet
Illumination Incidence Angle (deg): 25.69
Phase Angle (deg): 14.74
Instrument Look Direction: N/A
Surface Emission Angle (deg): 14.95

Ordering Information
CD-ROM Volume: VG_0018
NASA Image ID number: FDS 16368.36
Other Image ID number: Picno 0552J1-001
NSSDC Data Set ID (Photo): 77-084A-01B
NSSDC Data Set ID (CD): 77-084A-01P
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: Dr. David R. Williams,

Last updated: 24 September 2015