Data Quality Reports for Session: 133638 User: kapil Completed: 03/04/2011

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D030130.1TWP/TSI/C2 - Metadata Errors in NetCDF HeadertwptsiskycoverC2.a1, twptsiskycoverC2.b1
D030528.4TWP/TSI/C2 - Power outage in I-Van resulted in Missing DatatwptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
D030723.3TWP/TSI/C2 - Shadowband misalignmenttwptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
D040119.1TWP/TSI/C1 - mirror continuously spinningtwptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D040119.2TWP/TSI/C1 - shadowband not movingtwptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D040510.1TWP/TSI/C2 - Missing Data: Instrument FailuretwptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
D050224.4TWP/TSI/C2 - initial configurationtwptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D050331.6TWP/TSI/C2 - camera failuretwptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D050531.3TWP/TSI/C2 - Camera failuretwptsiC2.00, twptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
D050602.1TWP/TSI/C1 - hazy imagetwptsiC1.00, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D050621.2TWP/TSI/C1 - moisture in camera housingtwptsiC1.00, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D050826.1TWP/TSI/C1 - obstruction in lenstwptsiC1.00, twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1,
twptsiskyimageC1.a1
D060718.4TWP/TSI/C1 - Shadowband continuosly rotatingtwptsiC1.00, twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1,
twptsiskyimageC1.a1
D060822.1TWP/TSI/C1 - rust spots on mirrortwptsicldmaskC1.a1, twptsiskycoverC1.b1
D060825.2TWP/TSI/C1 - high control board temperaturetwptsiskycoverC1.b1
D060915.2TWP/TSI/C1 - solar shadowband inoperativetwptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D070203.3TWP/TSI/C2 - hazy imagetwptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D070406.8TWP/TSI/C1 - hazy imagetwptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D080108.3TWP/TSI/C2 - Mirror continuously rotatingtwptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D080324.2TWP/TSI/C2 - Shadowband MisalignmenttwptsiskycoverC2.b1
D080506.1TWP/TSI/C1 - shadowband misalignmenttwptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D080912.1TWP/TSI/C1 - Missing datatwptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D090506.1TWP/TSI/C1 - Shadowband MisalignmenttwptsiskycoverC1.b1
D110221.8TWP/TSI/C1 - Shadowband misalignmenttwptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1


DQRID : D030130.1
Start DateStart TimeEnd DateEnd Time
11/12/2002052001/07/20032359
Subject:
TWP/TSI/C2 - Metadata Errors in NetCDF Header
DataStreams:twptsiskycoverC2.a1, twptsiskycoverC2.b1
Description:
The value of "sample_int" reported in the netCDF header is
incorrect.  The correct sampling interval is 30 seconds.

The maximum values for the variable "sunny" is incorrect.  
It should be 1, not 100 as documented in the netCDF header. 
Users should disregard the "qc_sunny" flag during this
period of time and apply their own qc check if desired.

The minimum value for the variable "solar.altitude" is
incorrect. It should be -90, not 10 as documented in the
netCDF header.  Users should disregard the "qc_solar.altitude"
flag during this period of time and apply their own qc check
if desired.
Measurements:twptsiskycoverC2.b1:
  • time_offset
  • solar.altitude
  • Sunshine Meter(sunny)
twptsiskycoverC2.a1:
  • time_offset

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DQRID : D030528.4
Start DateStart TimeEnd DateEnd Time
05/24/2003230005/25/20030010
Subject:
TWP/TSI/C2 - Power outage in I-Van resulted in Missing Data
DataStreams:twptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
Description:
I forgot to put in the daily report that we took the I van down yesterday to replace the 
fans
in the Clary UPS. This was from 2300z on 24May03 to 0010z on 25May03. Instruments affected 
:

MPL
Ceilometer
MWR
WSI
TSI

Rex
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • sun.strength
  • solar.altitude
  • region.zenith.count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • alt
  • count.sub.horz
  • count.sky
  • lon
  • region.horizon.count.thin
  • region.sun.count
  • time_offset
  • region.horizon.count
  • base_time
  • region.zenith.count
  • count.thin
  • region.sun.count.thin
  • lat
  • region.sun.count.opaque
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • region.zenith.count.thin
  • count.box
  • region.horizon.count.opaque
  • Sunshine Meter(sunny)
  • count.mask
  • count.opaque
  • count.unknown
  • solar.azimuth
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available
twptsiskycoverC2.a1:
  • count.sub.horz
  • solar.azimuth
  • lat
  • count.sky
  • count.sub.proczen
  • region.horizon.count.thin
  • count.thin
  • base_time
  • region.horizon.count.opaque
  • count.unknown
  • count.box
  • region.sun.count
  • region.zenith.count.thin
  • region.sun.count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • Sunshine Meter(sunny)
  • region.zenith.count.opaque
  • count.mask
  • region.zenith.count
  • alt
  • solar.altitude
  • region.sun.count.opaque
  • region.horizon.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • count.opaque
  • lon
  • time_offset
  • sun.strength
twptsiC2.00:
  • Raw data stream - documentation not supported

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DQRID : D030723.3
Start DateStart TimeEnd DateEnd Time
05/21/2003004608/10/20032139
Subject:
TWP/TSI/C2 - Shadowband misalignment
DataStreams:twptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
Description:
The shadowband and mask were initially misaligned after the re-installation of the TSI.
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • region.zenith.count
  • region.zenith.count.opaque
  • count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • region.sun.count.opaque
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • region.zenith.count.thin
  • count.box
  • count.sub.horz
  • count.sky
  • region.horizon.count.thin
  • region.sun.count
  • region.horizon.count.opaque
  • region.horizon.count
  • count.mask
  • count.opaque
  • count.unknown
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available
twptsiskycoverC2.a1:
  • count.sub.horz
  • count.sky
  • count.sub.proczen
  • region.horizon.count.thin
  • count.thin
  • region.zenith.count.opaque
  • count.mask
  • region.zenith.count
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • count.unknown
  • region.horizon.count
  • count.box
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count
  • region.zenith.count.thin
  • count.opaque
  • region.sun.count.thin
  • Cloud amount, thin (percent)(percent.thin)
twptsiC2.00:
  • Raw data stream - documentation not supported

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DQRID : D040119.1
Start DateStart TimeEnd DateEnd Time
12/23/2003214912/24/20030412
12/27/2003065512/27/20030804
12/29/2003064512/29/20030714
12/31/2003023312/31/20030817
01/11/2004201501/12/20040419
01/13/2004034401/13/20042240
Subject:
TWP/TSI/C1 - mirror continuously spinning
DataStreams:twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
The mirror and associated shadowband went into a mode of continuously spinning, sometimes 
clockwise and sometimes counterclockwise, so the sun was not blocked.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.thin
  • count.sky
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • count.mask

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DQRID : D040119.2
Start DateStart TimeEnd DateEnd Time
01/13/2004224001/17/20040143
Subject:
TWP/TSI/C1 - shadowband not moving
DataStreams:twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
The shadowband was stuck in a position at about 215 degrees.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.thin
  • count.sky
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • count.mask

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DQRID : D040510.1
Start DateStart TimeEnd DateEnd Time
12/22/2003080002/01/20050235
Subject:
TWP/TSI/C2 - Missing Data: Instrument Failure
DataStreams:twptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
Description:
The TWP.C2 TSI failed 12/22/03.  Repeated attempts to fix it were
unsuccessful.  The instrument was removed from service for system
modifications.
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • sun.strength
  • solar.altitude
  • region.zenith.count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • alt
  • count.sub.horz
  • count.sky
  • lon
  • region.horizon.count.thin
  • region.sun.count
  • time_offset
  • region.horizon.count
  • base_time
  • region.zenith.count
  • count.thin
  • region.sun.count.thin
  • lat
  • region.sun.count.opaque
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • region.zenith.count.thin
  • count.box
  • region.horizon.count.opaque
  • Sunshine Meter(sunny)
  • count.mask
  • count.opaque
  • count.unknown
  • solar.azimuth
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available
twptsiskycoverC2.a1:
  • count.sub.horz
  • solar.azimuth
  • lat
  • count.sky
  • count.sub.proczen
  • region.horizon.count.thin
  • count.thin
  • base_time
  • region.horizon.count.opaque
  • count.unknown
  • count.box
  • region.sun.count
  • region.zenith.count.thin
  • region.sun.count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • Sunshine Meter(sunny)
  • region.zenith.count.opaque
  • count.mask
  • region.zenith.count
  • alt
  • solar.altitude
  • region.sun.count.opaque
  • region.horizon.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • count.opaque
  • lon
  • time_offset
  • sun.strength
twptsiC2.00:
  • Raw data stream - documentation not supported

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DQRID : D050224.4
Start DateStart TimeEnd DateEnd Time
02/01/2005023602/11/20050115
Subject:
TWP/TSI/C2 - initial configuration
DataStreams:twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
Description:
When the TSI-660 was deployed, there were several days of initial adjustments to the 
shadowband alignment and sky filter.
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • sun.strength
  • solar.altitude
  • region.zenith.count
  • region.zenith.count.opaque
  • count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • lat
  • region.sun.count.opaque
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • alt
  • region.zenith.count.thin
  • count.box
  • count.sub.horz
  • count.sky
  • lon
  • region.horizon.count.thin
  • region.sun.count
  • time_offset
  • region.horizon.count.opaque
  • Sunshine Meter(sunny)
  • region.horizon.count
  • count.mask
  • count.opaque
  • count.unknown
  • base_time
  • solar.azimuth
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available

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DQRID : D050331.6
Start DateStart TimeEnd DateEnd Time
03/29/2005210803/31/20052230
04/09/2005185104/14/20051950
Subject:
TWP/TSI/C2 - camera failure
DataStreams:twptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
Description:
The TSI camera was producing either poor or no images during this time. The problem was 
corrected by disconnecting and reconnecting the cable terminations to the camera both 
inside the main enclosure and in the camera housing.
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • count.sky
  • region.horizon.count.thin
  • sun.strength
  • region.sun.count
  • region.horizon.count.opaque
  • region.zenith.count
  • region.zenith.count.opaque
  • count.thin
  • Sunshine Meter(sunny)
  • region.horizon.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • region.sun.count.opaque
  • count.mask
  • count.sub.proczen
  • count.opaque
  • Cloud amount, thin (percent)(percent.thin)
  • count.unknown
  • region.zenith.count.thin
  • count.box
  • count.sub.horz
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC2.a1:
  • MPEG data stream - documentation not yet available

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DQRID : D050531.3
Start DateStart TimeEnd DateEnd Time
05/27/2005013707/15/20052352
Subject:
TWP/TSI/C2 - Camera failure
DataStreams:twptsiC2.00, twptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1,
twptsiskyimageC2.a1
Description:
The operation of the camera was itermittant. It produced very poor "hazy" images, blank 
white images, or no images when the camera failed to respond. Several attempts were made to 
correct the problem, involving checking the power and ethernet connections and wire and 
cleaning the lens and filter. The camera was replaced by a spare.
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • sun.strength
  • region.zenith.count
  • region.zenith.count.opaque
  • count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • region.sun.count.opaque
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • count.box
  • region.zenith.count.thin
  • count.sub.horz
  • count.sky
  • region.horizon.count.thin
  • region.sun.count
  • region.horizon.count.opaque
  • Sunshine Meter(sunny)
  • region.horizon.count
  • count.mask
  • count.opaque
  • count.unknown
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC2.a1:
  • MPEG data stream - documentation not yet available
twptsiC2.00:
  • Raw data stream - documentation not supported

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DQRID : D050602.1
Start DateStart TimeEnd DateEnd Time
05/27/2005020006/08/20050030
Subject:
TWP/TSI/C1 - hazy image
DataStreams:twptsiC1.00, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
Moisture in the camera lens and filter caused the sky image to be very "hazy". The lens 
and filter were cleaned, the moisure seals were checked, and desiccant was added to both 
the camera housing and main electonics enclosure.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsiC1.00:
  • AVHRR satellite images for Darwin from BOM (RAW)(raw)
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.sub.horz
  • count.thin
  • region.horizon.count
  • count.box
  • count.opaque
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • region.zenith.count.thin
  • count.sky
  • region.zenith.count
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • sun.strength
  • region.horizon.count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.opaque
  • region.sun.count.thin
  • count.mask
  • count.unknown

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DQRID : D050621.2
Start DateStart TimeEnd DateEnd Time
06/20/2005201206/22/20050245
06/28/2005030206/30/20052204
Subject:
TWP/TSI/C1 - moisture in camera housing
DataStreams:twptsiC1.00, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
Water infiltrated the camera housing after periods of heavy rain causing moisture to 
collect inside the neutral density filter, corrupting the images. The filter was cleaned, 
o-ring seal checked, and camera housing sealed where it joins the arm.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsiC1.00:
  • AVHRR satellite images for Darwin from BOM (RAW)(raw)
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.sub.horz
  • count.thin
  • region.horizon.count
  • count.box
  • count.opaque
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • region.zenith.count.thin
  • count.sky
  • region.zenith.count
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • sun.strength
  • region.horizon.count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.opaque
  • region.sun.count.thin
  • count.mask
  • count.unknown

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DQRID : D050826.1
Start DateStart TimeEnd DateEnd Time
07/20/2005000003/23/20060618
Subject:
TWP/TSI/C1 - obstruction in lens
DataStreams:twptsiC1.00, twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1,
twptsiskyimageC1.a1
Description:
The TSI at Manus has been able to remain dry and produces an image but the percentage of 
cloud cover is determined to be 100% even on cloud free days. Moisture in the camera lens 
and neutral density filter was corrupting the sky images. The lens and filter were 
cleaned, the moisure seals checked, the camera housing sealed, and desiccant added to both the 
camera housing and main electronics enclosure. On 3/23/2006, the lens was replaced and 
the sky images were significantly improved.
Measurements:twptsiC1.00:
  • AVHRR satellite images for Darwin from BOM (RAW)(raw)
twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • Sunshine Meter(sunny)
  • region.horizon.count
  • count.opaque
  • count.box
  • region.sun.count
  • sun.strength
  • Cloud amount, opaque (percent)(percent.opaque)
  • count.mask
  • region.zenith.count.opaque
  • count.unknown
  • count.sub.horz
  • count.thin
  • region.sun.count.opaque
  • region.horizon.count.opaque
  • region.zenith.count.thin
  • count.sky
  • count.sub.proczen
  • region.zenith.count
  • Cloud amount, thin (percent)(percent.thin)
  • region.horizon.count.thin
  • region.sun.count.thin

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DQRID : D060718.4
Start DateStart TimeEnd DateEnd Time
07/18/2006200007/25/20060350
Subject:
TWP/TSI/C1 - Shadowband continuosly rotating
DataStreams:twptsiC1.00, twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1,
twptsiskyimageC1.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.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsiC1.00:
  • AVHRR satellite images for Darwin from BOM (RAW)(raw)
twptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.sub.horz
  • count.thin
  • region.horizon.count
  • count.box
  • count.opaque
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • region.zenith.count.thin
  • count.sky
  • region.zenith.count
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • sun.strength
  • region.horizon.count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.opaque
  • region.sun.count.thin
  • count.mask
  • count.unknown

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DQRID : D060822.1
Start DateStart TimeEnd DateEnd Time
07/09/2006000010/12/20060600
Subject:
TWP/TSI/C1 - rust spots on mirror
DataStreams:twptsicldmaskC1.a1, twptsiskycoverC1.b1
Description:
During the evening of 7/8/2006, something caused several rust spots on one side of the 
hemispheric mirror which continued to grow in size and to be interpreted as clouds in the 
processed images. This problem was corrected during a site visit when the mirror was 
replaced.
Measurements:twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)

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DQRID : D060825.2
Start DateStart TimeEnd DateEnd Time
11/13/2005000010/12/20062300
Subject:
TWP/TSI/C1 - high control board temperature
DataStreams:twptsiskycoverC1.b1
Description:
The TT8 control board temperature was high, ~50C, so that the cooling fan was constantly 
on. It appears that the heat sinks were not transferred from the original board to the new 
one when it was replaced. The problem was corrected when heat sinks were installed.
Measurements:twptsiskycoverC1.b1:
  • Sunshine Meter(sunny)
  • count.sub.horz
  • count.thin
  • region.horizon.count
  • count.box
  • count.opaque
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • region.zenith.count.thin
  • solar.azimuth
  • count.sky
  • region.zenith.count
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • sun.strength
  • solar.altitude
  • region.horizon.count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.opaque
  • region.sun.count.thin
  • count.mask
  • count.unknown

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DQRID : D060915.2
Start DateStart TimeEnd DateEnd Time
08/29/2006190001/30/20070010
Subject:
TWP/TSI/C1 - solar shadowband inoperative
DataStreams:twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
The mirror/shadowband was not turning and there was no communication with the control 
board. The shadowband was stuck in the position of 0 degrees from 8/29 to 9/20/2006.

On 10/12/2006, the mirror was replaced, the real-time clock chip was removed and heat 
sinks were added to the control board, and the Ethernet hub and serial adaptor were replaced. 
On 1/8/2007, the slip clutch assembly, timing pulley, and timing belt were replaced 
(which were damaged when the mirror was replaced). These actions did not correct the problem. 
The instrument was swapped with the unit from Darwin so that the control board could be 
repaired and tested in Darwin.

Several images were collected in the iterim that should be ignored. These images include 
periods when the sun was not masked by the shadowband or the camera lens was covered by 
tape to protect the CCD from direct
exposure to the sun. There are also extended periods of missing data when the instrument 
was shutdown, waiting for parts.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • Sunshine Meter(sunny)
  • region.horizon.count
  • count.opaque
  • count.box
  • region.sun.count
  • solar.azimuth
  • lon
  • sun.strength
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.opaque
  • count.mask
  • time
  • count.unknown
  • count.sub.horz
  • count.thin
  • alt
  • lat
  • base_time
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • region.zenith.count.thin
  • time_offset
  • count.sky
  • count.sub.proczen
  • region.zenith.count
  • Cloud amount, thin (percent)(percent.thin)
  • solar.altitude
  • region.horizon.count.thin
  • region.sun.count.thin

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DQRID : D070203.3
Start DateStart TimeEnd DateEnd Time
01/11/2007190002/13/20070447
Subject:
TWP/TSI/C2 - hazy image
DataStreams:twptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
Description:
Condensation in the camera lens and/or filter caused the sky images to be "hazy". The 
desiccant in the main enclosure was changed and the neutral density filter was cleaned.
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • sun.strength
  • solar.altitude
  • region.zenith.count
  • region.zenith.count.opaque
  • count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • lat
  • region.sun.count.opaque
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • alt
  • region.zenith.count.thin
  • count.box
  • count.sub.horz
  • count.sky
  • lon
  • region.horizon.count.thin
  • region.sun.count
  • time_offset
  • region.horizon.count.opaque
  • Sunshine Meter(sunny)
  • region.horizon.count
  • count.mask
  • count.opaque
  • count.unknown
  • base_time
  • solar.azimuth
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC2.a1:
  • MPEG data stream - documentation not yet available

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DQRID : D070406.8
Start DateStart TimeEnd DateEnd Time
01/30/2007001102/01/20070035
Subject:
TWP/TSI/C1 - hazy image
DataStreams:twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, 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.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.sub.horz
  • count.thin
  • region.horizon.count
  • count.box
  • count.opaque
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • region.zenith.count.thin
  • count.sky
  • region.zenith.count
  • count.sub.proczen
  • Cloud amount, thin (percent)(percent.thin)
  • sun.strength
  • region.horizon.count.thin
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.opaque
  • region.sun.count.thin
  • count.mask
  • count.unknown

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DQRID : D080108.3
Start DateStart TimeEnd DateEnd Time
12/20/2007184903/05/20080200
Subject:
TWP/TSI/C2 - Mirror continuously rotating
DataStreams:twptsimovieC2.a1, twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
Description:
The mirror began to continuously spin. Diagnostics were performed on the encoder, control 
board, and Ethernet adaptor. The instrument was removed on 1/2/2008 and shipped to Darwin 
for repair. The encoder and control board were replaced and the instrument was 
reinstalled.
Measurements:twptsicldmaskC2.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC2.b1:
  • region.horizon.count.thin
  • region.sun.count
  • region.zenith.count
  • region.horizon.count.opaque
  • region.zenith.count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.horizon.count
  • region.sun.count.thin
  • region.sun.count.opaque
  • Cloud amount, thin (percent)(percent.thin)
  • region.zenith.count.thin
twptsiskyimageC2.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC2.a1:
  • MPEG data stream - documentation not yet available

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DQRID : D080324.2
Start DateStart TimeEnd DateEnd Time
03/24/2008185803/24/20082244
Subject:
TWP/TSI/C2 - Shadowband Misalignment
DataStreams:twptsiskycoverC2.b1
Description:
The shadowband was not masking the sun beginning at sunrise because the control board had 
the wrong date & time. These were reset and the shadowband came into proper alignment.
Measurements:twptsiskycoverC2.b1:
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin
  • region.sun.count
  • region.sun.count.opaque
  • count.opaque
  • solar.altitude
  • Cloud amount, thin (percent)(percent.thin)
  • solar.azimuth
  • count.thin

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DQRID : D080506.1
Start DateStart TimeEnd DateEnd Time
03/20/2006182003/23/20060425
Subject:
TWP/TSI/C1 - shadowband misalignment
DataStreams:twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
The TSI mirror controller was configured with a north latitude instead of south causing 
the shadowband to not mask the sun beginning at the vernal equinox. The problem was 
corrected by changing the sign of the latitude in the configuration file.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • region.sun.count.opaque
  • region.sun.count
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin

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DQRID : D080912.1
Start DateStart TimeEnd DateEnd Time
11/12/2005000011/16/20052359
01/22/2006000002/23/20062359
07/18/2006000007/19/20062359
07/23/2006000007/24/20062359
08/29/2006000001/29/20072359
08/22/2007000008/23/20072359
08/21/2008000004/22/20090133
12/28/2009022201/25/20100059
Subject:
TWP/TSI/C1 - Missing data
DataStreams:twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
Data are missing and unrecoverable.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • Sunshine Meter(sunny)
  • region.horizon.count
  • count.opaque
  • count.box
  • region.sun.count
  • solar.azimuth
  • lon
  • sun.strength
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.zenith.count.opaque
  • count.mask
  • time
  • count.unknown
  • count.sub.horz
  • count.thin
  • alt
  • lat
  • base_time
  • region.horizon.count.opaque
  • region.sun.count.opaque
  • region.zenith.count.thin
  • time_offset
  • count.sky
  • count.sub.proczen
  • region.zenith.count
  • Cloud amount, thin (percent)(percent.thin)
  • solar.altitude
  • region.horizon.count.thin
  • region.sun.count.thin

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DQRID : D090506.1
Start DateStart TimeEnd DateEnd Time
04/22/2009013306/30/20090214
Subject:
TWP/TSI/C1 - Shadowband Misalignment
DataStreams:twptsiskycoverC1.b1
Description:
When the TSI was reinstalled on 4/22/2009, the shadowband was aligned relative to the 
enclosure but either the camera arm & housing was not plumb or the enclosure was not properly 
aligned with true north. This was corrected on 6/30 at solar noon.
Measurements:twptsiskycoverC1.b1:
  • count.thin
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • sun.strength
  • region.sun.count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • region.sun.count.thin

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DQRID : D110221.8
Start DateStart TimeEnd DateEnd Time
01/17/2011201702/03/20110501
Subject:
TWP/TSI/C1 - Shadowband misalignment
DataStreams:twptsimovieC1.a1, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:
The shadowband was not effectively blocking the sun, except for around the noon hours when 
the sun was directly over-head. It was later found to be caused by stripped threads on 
the mirror mounting post.
Measurements:twptsiskyimageC1.a1:
  • JPEG data stream - documentation not yet available
twptsimovieC1.a1:
  • MPEG data stream - documentation not yet available
twptsicldmaskC1.a1:
  • Cloud decision images, Total Sky Imager, PNG format(png)
twptsiskycoverC1.b1:
  • count.thin
  • count.sky
  • Cloud amount, thin (percent)(percent.thin)
  • count.opaque
  • Cloud amount, opaque (percent)(percent.opaque)
  • count.mask

Back To Table of Contents


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