Data Quality Reports for Session: 150170 User: ql_data Completed: 05/15/2013

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D070608.2NSA/TSI/C1 - camera lens coverednsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1
D070608.3NSA/TSI/C1 - shadowband misalignednsatsiskycoverC1.b1, nsatsiskyimageC1.a1, nsatsicldmaskC1.a1
D080331.3NSA/TSI/C1 - frost/condensation in lensnsatsiskycoverC1.b1, nsatsiskyimageC1.a1
D090302.1NSA/TSI/C1 - Mirror frozennsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1
D111006.2NSA/TSI/C1 - Ingest ProblemnsatsiskycoverC1.b1
D121025.4NSA/TSI/C1 - Water on lensnsatsiskycoverC1.b1
D130424.5NSA/TSI/C1 - mirror contaminationnsatsiskycoverC1.b1
D130503.2NSA/TSI/C1 - cloud masknsatsicldmaskC1.a1, nsatsiskycoverC1.b1


DQRID : D070608.2
Start DateStart TimeEnd DateEnd Time
04/13/2007213104/20/20071826
Subject:
NSA/TSI/C1 - camera lens covered
DataStreams:nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1
Description:
The shadowband was not properly masking the sun so the camera lens was covered on 4/13 to 
prevent damage to the CCD. On 4/20, the mirror was blown off by a snow storm and the 
instrument was brought inside for repair. The mirror was replaced, the lens uncovered, and 
the instrument reinstalled.
Measurements:nsatsiskycoverC1.b1:
  • region.zenith.count.opaque
  • count.sub.horz
  • count.sub.proczen
  • count.opaque
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • region.horizon.count.opaque
  • region.sun.count
  • region.horizon.count.thin
  • count.unknown
  • region.horizon.count
  • region.zenith.count
  • region.sun.count.thin
  • Sunshine Meter(sunny)
  • region.zenith.count.thin
  • sun.strength
  • region.sun.count.opaque
  • count.box
  • count.sky
  • count.mask
  • Cloud amount, opaque (percent)(percent.opaque)
nsatsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
nsatsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available

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DQRID : D070608.3
Start DateStart TimeEnd DateEnd Time
03/26/2007160604/13/20072130
Subject:
NSA/TSI/C1 - shadowband misaligned
DataStreams:nsatsiskycoverC1.b1, nsatsiskyimageC1.a1, nsatsicldmaskC1.a1
Description:
At several times during this period the shadowband did not mask the sun because the mirror 
was not properly secured. Attempts were made to align the mirror on 4/2, 4/3, and 4/10.
Measurements:nsatsiskycoverC1.b1:
  • region.zenith.count.opaque
  • count.sub.horz
  • count.sub.proczen
  • count.opaque
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • region.horizon.count.opaque
  • region.sun.count
  • region.horizon.count.thin
  • count.unknown
  • region.horizon.count
  • region.zenith.count
  • region.sun.count.thin
  • region.zenith.count.thin
  • sun.strength
  • region.sun.count.opaque
  • count.box
  • count.sky
  • count.mask
  • Cloud amount, opaque (percent)(percent.opaque)
nsatsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
nsatsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available

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DQRID : D080331.3
Start DateStart TimeEnd DateEnd Time
03/07/2008000004/08/20082327
Subject:
NSA/TSI/C1 - frost/condensation in lens
DataStreams:nsatsiskycoverC1.b1, nsatsiskyimageC1.a1
Description:
The sky image appeared hazy and was corrected by cleaning the neutral-density filter and 
lens of the camera. The determination of cloud fraction may be affected.
Measurements:nsatsiskycoverC1.b1:
  • Cloud amount, thin (percent)(percent.thin)
  • Cloud amount, opaque (percent)(percent.opaque)
nsatsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available

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DQRID : D090302.1
Start DateStart TimeEnd DateEnd Time
02/28/2009181302/28/20092125
Subject:
NSA/TSI/C1 - Mirror frozen
DataStreams:nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1
Description:
The mirror was not rotating so the shadowband was not masking the sun. This appears to 
have been caused by snow that was melted by the mirror heater and then re-frozen by high, 
cold winds.
Measurements:nsatsiskycoverC1.b1:
  • region.zenith.count.opaque
  • count.opaque
  • Cloud amount, thin (percent)(percent.thin)
  • count.thin
  • region.horizon.count.opaque
  • region.sun.count
  • region.horizon.count.thin
  • region.horizon.count
  • region.sun.count.thin
  • region.zenith.count
  • region.zenith.count.thin
  • region.sun.count.opaque
  • count.sky
  • Cloud amount, opaque (percent)(percent.opaque)
nsatsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
nsatsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available

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DQRID : D111006.2
Start DateStart TimeEnd DateEnd Time
11/11/2010165010/20/20111832
Subject:
NSA/TSI/C1 - Ingest Problem
DataStreams:nsatsiskycoverC1.b1
Description:
A minor error was made with diagnostic metadata attribute sunny_thresh when the TSI ingest 
was updated.
Measurements:nsatsiskycoverC1.b1:
  • base_time

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DQRID : D121025.4
Start DateStart TimeEnd DateEnd Time
03/09/2011010810/24/20122159
Subject:
NSA/TSI/C1 - Water on lens
DataStreams:nsatsiskycoverC1.b1
Description:
After a rain episode, drops of water collected on the lens window causing the cloud 
fraction values to be suspect.

To prevent this, a drip edge was formed around the bottom of the enclosure with thick 
electrical or splicing tape.
Measurements:nsatsiskycoverC1.b1:
  • region.zenith.count.opaque
  • region.zenith.count
  • region.zenith.count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • count.thin
  • count.sky
  • Cloud amount, opaque (percent)(percent.opaque)

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DQRID : D130424.5
Start DateStart TimeEnd DateEnd Time
05/24/2011173705/31/20111741
Subject:
NSA/TSI/C1 - mirror contamination
DataStreams:nsatsiskycoverC1.b1
Description:
The surface of the chrome mirror was soiled causing the cloud fraction determination to be 
unreliable.
Measurements:nsatsiskycoverC1.b1:
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • count.thin
  • Cloud amount, opaque (percent)(percent.opaque)

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DQRID : D130503.2
Start DateStart TimeEnd DateEnd Time
02/14/2012235402/16/20121010
Subject:
NSA/TSI/C1 - cloud mask
DataStreams:nsatsicldmaskC1.a1, nsatsiskycoverC1.b1
Description:
The processed image and cloud fraction determination were incorrect because the clear/thin 
threshold was set too high.
Measurements:nsatsiskycoverC1.b1:
  • region.zenith.count.opaque
  • region.sun.count.thin
  • region.zenith.count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • count.thin
  • region.sun.count.opaque
  • region.horizon.count.opaque
  • count.mask
  • region.horizon.count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
nsatsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)

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