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X-ray Images of the North Polar Region from the Chandra HRC-I Instrument
Here are X-rays images (shown on the same brightness scale) of the north polar region obtained by Chandra HRC-I on different days, showing large variability in soft (0.1-10.0 keV) X-ray emissions from Earth s aurora. Note that the images are not snap shots, but are ~20-min scans of the northern auroral region in the HRC-I field-of-view. The brightness scale in Rayleighs (R) assumes an average effective area of 40 cm2. The day-night terminator at an altitude of 0 km is displayed with lighting. The day-night terminator at an altitude of 100 km is shown by the blue line.

This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC. The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.    This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC. The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.

Available formats:
  2560 x 1920     TIFF 5 MB
  160 x 80           PNG       21 KB
  320 x 240         JPEG     10 KB
  80 x 40             PNG         6 KB


This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.    This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.

Available formats:
  2560 x 1920     TIFF 5 MB
  160 x 80           PNG       20 KB
  320 x 240         JPEG       8 KB
  80 x 40             PNG         6 KB


This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.    This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.

Available formats:
  2560 x 1920     TIFF 5 MB
  160 x 80           PNG       22 KB
  320 x 240         JPEG       9 KB
  80 x 40             PNG         6 KB


April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC. The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.    April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC. The blue line near the surface day/night terminator is where the terminator is 100 km from the surface.

Available formats:
  2560 x 1920     TIFF 5 MB
  160 x 80           PNG       23 KB
  80 x 40             PNG         6 KB
  320 x 240         JPEG     10 KB


This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC.    This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC.

Available formats:
  2560 x 1920     TIFF 5 MB
  320 x 240         JPEG       9 KB


This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.    This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.

Available formats:
  2560 x 1920     TIFF 5 MB
  320 x 240         JPEG       8 KB


This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.    This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.

Available formats:
  2560 x 1920     TIFF 5 MB
  320 x 240         JPEG       9 KB


April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC.    April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC.

Available formats:
  2560 x 1920     TIFF 5 MB
  320 x 240         JPEG     10 KB



X-Ray emissions colortable 		   X-Ray emissions colortable

Available formats:
  320 x 90           PNG         6 KB


This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC.    This data was scanned on January 24, 2004 from 20:01:25 UTC till January 24, 2004 20:22:19 UTC.

Available formats:
  2560 x 1920     TIFF 4 MB
  320 x 240         PNG       94 KB


This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.    This data was observed on January 30, 2004 from 03:06:20 till 03:26:50.

Available formats:
  2560 x 1920     TIFF 5 MB
  320 x 240         PNG       88 KB


This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.    This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC.

Available formats:
  2560 x 1920     TIFF 6 MB
  320 x 240         PNG     105 KB


This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC. The terminator at 100 km has been removed.    This observation was taken from Feb 14, 2004 at 23:58 to Feb 15, 2004 at 00:18 UTC. The terminator at 100 km has been removed.

Available formats:
  2560 x 1920     TIFF 5 MB
  320 x 240         PNG     105 KB


April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC.    April 13, 2004 - This data was observed from 3:46 UTC to 4:07 UTC.

Available formats:
  2560 x 1920     TIFF 5 MB
  320 x 240         PNG       99 KB

Animation Number:3165
Completed:2005-05-20
Animators:Lori Perkins (NASA/GSFC) (Lead)
 Greg Shirah (NASA/GSFC)
Scientists:Anil Bhardwaj (NASA/MSFC)
 Ron Elsner (NASA/MSFC)
 Randy Gladstone (SwRI)
 Megan Watzke (Harvard)
Platform/Sensor/Data Set:Chandra/HRC-I (2004/01/24, 2004/01/30, 2004/02/15, 2004/04/13)
Keywords:
SVS >> Aurora
SVS >> X-ray
GCMD >> EARTH SCIENCE >> Cryosphere
 
 
Please give credit for this item to:
NASA/Goddard Space Flight Center
Scientific Visualization Studio


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