+ Visit NASA.gov + Advanced Search   + About the Server   + Animation List   + How to Use the Server   + RSS Feeds Previous Animation Next Animation THEMIS ASI Ground Station Array This visualization shows the 20 THEMIS ASI ground station locations. These ground stations will assist the THEMIS satellite constellation in measuring the Aurora Borealis over North America. Each ground station has an all-sky imaging white-light auroral camera and a magnetometer. The ground stations' radial coverage is rendered at 540 km. An artist's conception of an aurora is added to the second part of the visualization for context.    THEMIS ASI Gound Station Array visualization Duration: 13.0 seconds Available formats:   320x240 (29.97 fps) MPEG-1   2 MB   640x480 (29.97 fps) MPEG-1   5 MB   640x480 (29.97 fps) MPEG-4   4 MB   640x480 (30 fps) Frames   1280x720 (30 fps) Frames   1280x720 (30 fps) MPEG-4   12 MB   1280x720 (50 fps) MPEG-2   30 MB   320x240     PNG           103 KB   160x80       PNG           22 KB   80x40         PNG           6 KB How to play our movies    THEMIS ASI ground station array (no aurora) Available formats:   2560 x 1920     TIFF 4 MB   320 x 240         PNG 103 KB    THEMIS ASI ground stations array (with aurora) Available formats:   2560 x 1920     TIFF 5 MB   320 x 240         PNG 112 KB Animation Number: 3398 Animator: Greg Shirah (SVS) (Lead) Completed: 2007-01-12 Scientists: Vassilis Angelopoulos (University of California, Berkeley)   David G. Sibeck (NASA/GSFC)   Harald Frey (University of California, Berkeley) Data set: THEMIS ASI Array Series: THEMIS Pre-launch Keywords: SVS >> HDTV GCMD >> EARTH SCIENCE >> Sun-earth Interactions >> Ionosphere/Magnetosphere Particles >> Aurorae     Please give credit for this item to NASA/Goddard Space Flight Center Scientific Visualization Studio Back to Top + Privacy Policy and Important Notices + Reproduction Guidelines NASA Official: SVS Contact: Curator: