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THEMIS/ASI Nights

A collection of ground-based All-Sky Imagers (ASI) make up another important component of the THEMIS mission. It is sometimes referred to as the sixth THEMIS satellite. Descriptions of the instruments are available on the THEMIS-Canada Home Page. Imagery from each camera is co-registered to the surface of the Earth and assembled into a view of the auroral events.

This movie presents data from the first large auroral substorm since the THEMIS launch. The substorm reached its maximum between 6:00 and 7:00 UT.

Note that the ASI data in this movie are assembled from the lower resolution quick-look data sets. These create some extra pixellation of the data in the static high-resolution views.

This movie zooms in on the Earth, revealing the placement of the ASI ground stations and their sky coverage. We observe the stations coming online as the night progresses.    This movie zooms in on the Earth, revealing the placement of the ASI ground stations and their sky coverage. We observe the stations coming online as the night progresses.
Duration: 52.0 seconds
Available formats:
  1280x720 (30 fps) MPEG-4   4 MB
  1280x720 (30 fps) QUICKTIME 32 MB
  1280x720 (30 fps) MPEG-2   34 MB
  512x288 (30 fps) MPEG-1   9 MB
  640x360 (30 fps) QUICKTIME 8 MB
  1280x720 (30 fps) Frames (DateStamp)
  320x180     PNG           239 KB
How to play our movies


This version of the movie has no time stamps in the lower left corner.    This version of the movie has no time stamps in the lower left corner.
Duration: 52.0 seconds
Available formats:
  1280x720 (30 fps) MPEG-4   12 MB
  1280x720 (30 fps) QUICKTIME 37 MB
  1280x720 (30 fps) MPEG-2   33 MB
  512x288 (30 fps) MPEG-1   9 MB
  1280x720 (30 fps) Frames (NoDateStamp)
  320x180     PNG           238 KB
How to play our movies


This version does not have a longitude/latitude grid on the Earth.    This version does not have a longitude/latitude grid on the Earth.
Duration: 52.0 seconds
Available formats:
  1280x720 (30 fps) MPEG-4   4 MB
  1280x720 (30 fps) MPEG-2   30 MB
  512x288 (30 fps) MPEG-1   8 MB
  1280x720 (30 fps) Frames (NoGrid)
  320x180     PNG           218 KB
How to play our movies


The movie opens with a view over the sunlit Pacific Ocean. The sun is just setting in California.    The movie opens with a view over the sunlit Pacific Ocean. The sun is just setting in California.

Available formats:
  2560 x 1440     TIFF 2 MB
  320 x 180         PNG 148 KB


As the camera moves over northern Canada, already in night, we see the circles of sky coverage for the ASI ground stations (blue circles). The eastern-most stations have come online and we see the image data from these cameras (colored green).    As the camera moves over northern Canada, already in night, we see the circles of sky coverage for the ASI ground stations (blue circles). The eastern-most stations have come online and we see the image data from these cameras (colored green).

Available formats:
  2560 x 1440     TIFF 4 MB
  320 x 180         PNG 267 KB


No time stamp. As the camera moves over northern Canada, already in night, we see the circles of sky coverage for the ASI ground stations (blue circles). The eastern-most stations have come online and we see the image data from these cameras (colored green).    No time stamp. As the camera moves over northern Canada, already in night, we see the circles of sky coverage for the ASI ground stations (blue circles). The eastern-most stations have come online and we see the image data from these cameras (colored green).

Available formats:
  2560 x 1440     TIFF 4 MB
  320 x 180         PNG 267 KB


The night progresses and ASI cameras further west come online. The bright green structures from the aurora become evident.    The night progresses and ASI cameras further west come online. The bright green structures from the aurora become evident.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 264 KB


No time stamp. The night progresses and ASI cameras further west come online. The bright green structures from the aurora become evident.    No time stamp. The night progresses and ASI cameras further west come online. The bright green structures from the aurora become evident.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 263 KB


Hours later, almost every ASI camera is online.    Hours later, almost every ASI camera is online.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 253 KB


No time stamp. Hours later, almost every ASI camera is online.    No time stamp. Hours later, almost every ASI camera is online.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 252 KB


Aurora regions brighten as the substorm hits. Components of the auroral structures begin to change more quickly.    Aurora regions brighten as the substorm hits. Components of the auroral structures begin to change more quickly.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 252 KB


No time stamp. Aurora regions brighten as the substorm hits. Components of the auroral structures begin to change more quickly.    No time stamp. Aurora regions brighten as the substorm hits. Components of the auroral structures begin to change more quickly.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 250 KB


Further evolution of the substorm.    Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 252 KB


No time stamp. Further evolution of the substorm.    No time stamp. Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 251 KB


Further evolution of the substorm.    Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 250 KB


No time stamp. Further evolution of the substorm.    No time stamp. Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 249 KB


Further evolution of the substorm.    Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 250 KB
  160 x 80           PNG 61 KB
  80 x 40             PNG 16 KB


No time stamp. Further evolution of the substorm.    No time stamp. Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 248 KB


Further evolution of the substorm.    Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 251 KB


No time stamp. Further evolution of the substorm.    No time stamp. Further evolution of the substorm.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 249 KB


As local morning arrives, the ASI stations turn off, starting from the eastern portion of Canada.    As local morning arrives, the ASI stations turn off, starting from the eastern portion of Canada.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 261 KB


No time stamp. As local morning arrives, the ASI stations turn off, starting from the eastern portion of Canada.    No time stamp. As local morning arrives, the ASI stations turn off, starting from the eastern portion of Canada.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 260 KB


A few stations are still on in western Canada and Alaska.    A few stations are still on in western Canada and Alaska.

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  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 262 KB


No time stamp. A few stations are still on in western Canada and Alaska.    No time stamp. A few stations are still on in western Canada and Alaska.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 261 KB


All ASI stations are now off.    All ASI stations are now off.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 264 KB


All ASI stations are now off.    All ASI stations are now off.

Available formats:
  2560 x 1440     TIFF 3 MB
  320 x 180         PNG 263 KB

Animation Number:3512
Animators:Tom Bridgman (SVS) (Lead)
 Greg Shirah (SVS)
Completed:2008-04-30
Producer:Rani Gran (NASA/GSFC)
Scientists:Vassilis Angelopoulos (University of California, Berkeley)
 David G. Sibeck (NASA/GSFC)
 Harald Frey (University of California, Berkeley)
 Nicola Fox (Johns Hopkins University/APL)
Instrument:THEMIS/ASI
Data Collected:2008-03-09T00:00:00UT - 2008-03-09T12:00:00UT
Series:Auroral Substorms - the View from Space
Keywords:
SVS >> Aurora
SVS >> HDTV
GCMD >> EARTH SCIENCE >> Sun-earth Interactions >> Ionosphere/Magnetosphere Particles >> Aurorae
SVS >> Auroral Substorm
 
 
Please give credit for this item to
NASA/Goddard Space Flight Center Scientific Visualization Studio


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