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Solar Dynamics Observatory (SDO): Data Collection Comparison

Solar Dynamics Observatory (SDO) will dramatically increase our ability to collect data about the Sun. This visualization compares the temporal and spatial resolution of SOHO/EIT with TRACE. SDO will enable TRACE-like image and temporal resolution over the entire solar disk.

This movie opens with a full-disk view of the Sun in ultraviolet light (195 Angstroms) from SOHO/EIT using the traditional TRACE 'gold' color table. We zoom in on the active region on the western limb where the TRACE instrument is pointing and fade-in an inset of the higher-resolution TRACE data. To emphasize the comparison, the TRACE inset is moved aside (with a solid white border) revealing the matching EIT data view (enclosed in the faint white border). At this point, we step through the time series of data frames. In this movie, much of the TRACE imagery is collected at time intervals between 3 and 40 seconds. On the other hand, a new SOHO/EIT image is taken about every 12 minutes (720 seconds). The SDO Atmospheric Imaging Assembly (AIA) will take full-disk solar images at four times the SOHO/EIT spatial resolution, a whopping 4096x4096, and at least 70 times the temporal resolution, 10 seconds or better per image. This creates a data rate over 1000x higher than SOHO/EIT. It is roughly equivalent to TRACE spatial and temporal resolution, but over the entire solar disk.


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This version of the movie DOES NOT include data frames where the TRACE instrument re-points for short periods of time.    This version of the movie DOES NOT include data frames where the TRACE instrument re-points for short periods of time.
Duration: 1.7 minutes
Available formats:
  1280x720   MPEG-4   73 MB
  1280x720   MPEG-2   110 MB
  512x288     MPEG-1   27 MB
  960x540     MPEG-4   8 MB
  1280x720   Frames (Smoothframes)
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Shorter version of the smooth-playing movie.    Shorter version of the smooth-playing movie.
Duration: 50.0 seconds
Available formats:
  1280x720   MPEG-4   6 MB
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This version of the movie includes ALL TRACE data frames, including cases where the spacecraft re-points for short times.  This makes the movie jump around considerably more than the 'smooth' version.    This version of the movie includes ALL TRACE data frames, including cases where the spacecraft re-points for short times. This makes the movie jump around considerably more than the 'smooth' version.
Duration: 1.9 minutes
Available formats:
  1280x720   MPEG-4   94 MB
  512x288     MPEG-1   34 MB
  1280x720   MPEG-2   138 MB
  1280x720   Frames (Allframes)
  1280x720   JPEG         149 KB
  320x180     PNG           64 KB
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Opening view of the Sun in ultraviolet light.  Surprisingly, it is mostly dark, but for the high temperature active regions.    Opening view of the Sun in ultraviolet light. Surprisingly, it is mostly dark, but for the high temperature active regions.

Available formats:
  2560 x 1440     TIFF       1 MB


A closeup view of the active region where TRACE is pointed.    A closeup view of the active region where TRACE is pointed.

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  2560 x 1440     TIFF       2 MB


Faint box outlines range of the TRACE field-of-view.    Faint box outlines range of the TRACE field-of-view.

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  2560 x 1440     TIFF       2 MB


Matching view from TRACE appears, with a brigher outline box.    Matching view from TRACE appears, with a brigher outline box.

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  2560 x 1440     TIFF       2 MB


The TRACE inset box moves aside, revealing the SOHO/EIT view.  Note the dramatic different in visibility of fine structures in the coronal loops.    The TRACE inset box moves aside, revealing the SOHO/EIT view. Note the dramatic different in visibility of fine structures in the coronal loops.

Available formats:
  2560 x 1440     TIFF       2 MB


More fine structure is visible in the TRACE field of view, including some brightening in the loops.    More fine structure is visible in the TRACE field of view, including some brightening in the loops.

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  2560 x 1440     TIFF       3 MB


When TRACE sees the early part of a bright flare, EIT is still between pictures.    When TRACE sees the early part of a bright flare, EIT is still between pictures.

Available formats:
  2560 x 1440     TIFF       3 MB


Another example comparing the visibility of fine structure in the loops.    Another example comparing the visibility of fine structure in the loops.

Available formats:
  2560 x 1440     TIFF       2 MB

Short URL to This Page:http://svs.gsfc.nasa.gov/goto?3435
Animation Number:3435
Completed:2007-06-22
Animator:Tom Bridgman (GST) (Lead)
Scientist:William D. Pesnell (NASA/GSFC)
Platforms/Sensors/Data Sets:TRACE/Optical Telescope/195 Angstroms (2003-Oct-25T00:00:26 - 2003-Oct-27T17:59:32)
 SOHO/Extreme-UV Imaging Telescope (EIT)/195 Filter (2003-Oct-25T00:00:26 - 2003-Oct-27T17:59:32)
 SDO
Series:SDO Pre-launch
 The Sun
 SDO - Visualizations
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio
 
Keywords:
SVS >> HDTV
SVS >> SOHO
SVS >> Solar Active Region
SVS >> Solar Ultraviolet
SVS >> Sun
GCMD >> Earth Science >> Sun-earth Interactions >> Solar Activity
SVS >> SDO
SVS >> Solar Dynamics Observatory
SVS >> TRACE
 
 


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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0

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