DQRID : D060718.4
Start DateStart TimeEnd DateEnd Time
07/18/2006200007/25/20060350
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Subject:
TWP/TSI/C1 - Shadowband continuosly rotating
DataStreams:twptsiskycoverC1.b1, twptsimovieC1.a1, twptsiskyimageC1.a1, twptsiC1.00,
twptsicldmaskC1.a1
Description:
The mirror was continuously spinning during different periods of the day, usually in the 
afternoon, causing the shadowband to not properly block the sun. This problem was 
corrected by removing the real-time-clock integrated circuit DSI306, or EEPROM U10, from the 
control board and reloading the position and time parameters.
Suggestions: 
Ignore data during periods when the mirror, or shadowband, was continuously spinning.
Measurements:twptsiskycoverC1.b1:
  • Pixel count: number total between horizon and processed circle(count.sub.proczen)
  • Pixel count: number thin in sun circle(region.sun.count.thin)
  • Percent opaque cloud(percent.opaque)
  • Pixel count: number total in zenith circle(region.zenith.count)
  • Pixel count: number thin in zenith circle(region.zenith.count.thin)
  • Percentage thin cloud(percent.thin)
  • Relative \'strength\' of direct sun(sun.strength)
  • Pixel count: number total in processed circle(count.sky)
  • Pixel count: number total in sun circle(region.sun.count)
  • Pixel count: number total in horizon area(region.horizon.count)
  • Pixel count: number opaque in horizon area(region.horizon.count.opaque)
  • Pixel count: camera and sun strip mask(count.mask)
  • Pixel count: number below horizon in image(count.sub.horz)
  • Pixel count: number total opaque(count.opaque)
  • Pixel count: number total thin(count.thin)
  • Pixel count: number opaque in zenith circle(region.zenith.count.opaque)
  • Pixel count: number thin in horizon area(region.horizon.count.thin)
  • Pixel count: box, outside mirror area(count.box)
  • Pixel count: number opaque in sun circle(region.sun.count.opaque)
  • Pixel count: number total indeterminant(count.unknown)
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twptsiskyimageC1.a1:
  • null(JPEG data stream - documentation not yet available)
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twptsicldmaskC1.a1:
  • PNG data stream - documentation not supported(png)
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twptsiC1.00:
  • (Raw data stream - documentation not supported)
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twptsimovieC1.a1:
  • (MPEG data stream - documentation not yet available)
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