Epimetheus - Voyager 1

Saturn's satellite Epimetheus from 182,000 km

Epimetheus
Detail of Voyager 1 raw image of Saturn's moon Epimetheus. This image was taken just over an hour before closest approach of the spacecraft to Saturn. Epimetheus is an irregularly shaped body with a radius of 69 km at the equator and 55 km at the poles. It orbits Saturn with a period of 0.7 days and a semi-major axis just over 150,000 km. Epimetheus co-orbits and gravitaionally interacts with the satellite Janus. The semi-circular shadow just to the left of the terminator is the shadow of Saturn's F-ring. Epimetheus is about 130 km from the top to bottom in this image and north is at 1:00. (Voyager 1, FDS 34942.29)
Larger image:

High resolution tiff file (1.0 Mb)


Location & Time Information
Date/Time (UT): 1980-11-12 T 22:32:33
Distance/Range (km): 181,909.1
Central Latitude/Longitude (deg): -44.,290.
Orbit(s): Flyby

Imaging Information
Area or Feature Type: global view
Instrument: Narrow Angle Vidicon Camera
Instrument Resolution (pixels): 800 x 800, 8 bit
Instrument Field of View (deg): 0.424 x 0.424
Filter: Clear
Illumination Incidence Angle (deg): N/A
Phase Angle (deg): 54.38
Instrument Look Direction: N/A
Surface Emission Angle (deg): N/A

Ordering Information
CD-ROM Volume: VG_0004
NASA Image ID number: FDS 34942.29
Other Image ID number: Picno 1713S1-001
NSSDC Data Set ID (Photo): NSD XD-12A
NSSDC Data Set ID (CD): 77-084-01Q
Other ID: N/A

Updated 11 March 2003, DRW.