DQRID : D070406.8
Start DateStart TimeEnd DateEnd Time
01/30/2007001102/01/20070035
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Subject:
TWP/TSI/C1 - hazy image
DataStreams:twptsiskycoverC1.b1, twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskyimageC1.a1
Description:
When the TSI from Darwin was installed (so the instrument from Manus could be returned to 
Darwin for repair) moisture in the camera lens and filter caused the sky image to be very 
"hazy". The U10 chip was removed from the control board, desiccant was installed inside 
the enclosure, additional small desiccant bags were installed inside the camera housing, 
the camera housing was sealed with silicon to prevent moisture ingress, and the camera 
lens filter was cleaned and the focus adjusted.
Suggestions: 
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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twptsimovieC1.a1:
  • (MPEG data stream - documentation not yet available)
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