DQRs for Session: 117051 User:kmwillettCompleted: 01-19-2009

Data Quality Reports for Session: 117051 User: kmwillett Completed: 01/19/2009

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D020717.18	TWP/TSI/C3 - Missing data due to Mentor Activities	twptsiC3.00, twptsiskycoverC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
D030130.1	TWP/TSI/C2 - Metadata Errors in NetCDF Header	twptsiskycoverC2.a1, twptsiskycoverC2.b1
D030130.2	TWP/TSI/C3 - Metadata Errors in NetCDF Header	twptsiskycoverC3.a1, twptsiskycoverC3.b1
D030528.4	TWP/TSI/C2 - Power outage in I-Van resulted in Missing Data	twptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D030723.3	TWP/TSI/C2 - Shadowband misalignment	twptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D040119.1	TWP/TSI/C1 - mirror continuously spinning	twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D040119.2	TWP/TSI/C1 - shadowband not moving	twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D040510.1	TWP/TSI/C2 - Missing Data: Instrument Failure	twptsiC2.00, twptsicldmaskC2.a1, twptsiskycoverC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D040610.2	TWP/TSI/C3 - poor images	twptsicldmaskC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
D041014.3	TWP/TSI/C3 - camera failure	twptsiskycoverC3.b1, twptsiskyimageC3.a1
D050224.4	TWP/TSI/C2 - initial configuration	twptsicldmaskC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D050224.5	TWP/TSI/C3 - initial configuration	twptsicldmaskC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
D050331.6	TWP/TSI/C2 - camera failure	twptsicldmaskC2.a1, twptsimovieC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D050531.3	TWP/TSI/C2 - Camera failure	twptsiC2.00, twptsicldmaskC2.a1, twptsimovieC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1
D050602.1	TWP/TSI/C1 - hazy image	twptsiC1.00, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D050621.2	TWP/TSI/C1 - moisture in camera housing	twptsiC1.00, twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D050826.1	TWP/TSI/C1 - obstruction in lens	twptsiC1.00, twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D051114.1	TWP/TSI/C3 - Instrument failure	twptsiC3.00, twptsicldmaskC3.a1, twptsimovieC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
D060203.1	TWP/TSI/C1 - signal cable problem	twptsiC1.00, twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D060519.2	TWP/TSI/C3 - controller board failure	twptsicldmaskC3.a1, twptsimovieC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
D060718.4	TWP/TSI/C1 - Shadowband continuosly rotating	twptsiC1.00, twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D060822.1	TWP/TSI/C1 - rust spots on mirror	twptsicldmaskC1.a1, twptsiskycoverC1.b1
D060825.2	TWP/TSI/C1 - high control board temperature	twptsiskycoverC1.b1
D060915.2	TWP/TSI/C1 - solar shadowband inoperative	twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
D080502.3	TWP/TSI/C3 - mirror continously rotating	twptsicldmaskC3.a1, twptsiskycoverC3.b1
D080506.1	TWP/TSI/C1 - shadowband misalignment	twptsicldmaskC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1

DQRID : D020717.18

Start Date	Start Time	End Date	End Time
07/17/2002	0705	07/17/2002	1805

Subject:	TWP/TSI/C3 - Missing data due to Mentor Activities
DataStreams:	twptsiC3.00, twptsiskycoverC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
Description:	Darwin TSI on-board image collection and processing had been turned off for Instrument Mentor to make fine tuning adjustments. Mentor then forgot to turn the on-board image collection and processing back on. All data for this time period is missing and unrecoverable.
Measurements:	twptsiskycoverC3.b1: Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total indeterminant(count.unknown) Pixel count: number total in processed circle(count.sky) Pixel count: number thin in zenith circle(region.zenith.count.thin) Dummy altitude for Zeb(alt) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number below horizon in image(count.sub.horz) base time(base_time) Pixel count: number total opaque(count.opaque) lat(lat) Solar azimuth angle(solar.azimuth) Percentage thin cloud(percent.thin) Sunshine meter(sunny) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: box, outside mirror area(count.box) Sun altitude above horizon(solar.altitude) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: camera and sun strip mask(count.mask) Percent opaque cloud(percent.opaque) lon(lon) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Time offset of tweaks from base_time(time_offset) Pixel count: number total thin(count.thin) Pixel count: number total in sun circle(region.sun.count) Relative \'strength\' of direct sun(sun.strength) twptsiskyimageC3.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC3.a1: Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) lon(lon) Sunshine meter(sunny) Pixel count: number total opaque(count.opaque) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total thin(count.thin) Pixel count: camera and sun strip mask(count.mask) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total in sun circle(region.sun.count) Relative \'strength\' of direct sun(sun.strength) Solar azimuth angle(solar.azimuth) Pixel count: number thin in sun circle(region.sun.count.thin) Percentage thin cloud(percent.thin) Pixel count: number below horizon in image(count.sub.horz) Time offset of tweaks from base_time(time_offset) Pixel count: box, outside mirror area(count.box) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Sun altitude above horizon(solar.altitude) Percent opaque cloud(percent.opaque) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: number total in processed circle(count.sky) base time(base_time) Pixel count: number total indeterminant(count.unknown) Dummy altitude for Zeb(alt) lat(lat) twptsiC3.00: null(Raw data stream - documentation not supported)

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DQRID : D030130.1

Start Date	Start Time	End Date	End Time
11/12/2002	0520	01/07/2003	2359

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: Sun altitude above horizon(solar.altitude) Sunshine meter(sunny) Time offset of tweaks from base_time(time_offset) twptsiskycoverC2.a1: Time offset of tweaks from base_time(time_offset)

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DQRID : D030130.2

Start Date	Start Time	End Date	End Time
07/16/2002	0000	01/20/2003	2359

Subject:	TWP/TSI/C3 - Metadata Errors in NetCDF Header
DataStreams:	twptsiskycoverC3.a1, twptsiskycoverC3.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:	twptsiskycoverC3.b1: Time offset of tweaks from base_time(time_offset) Sun altitude above horizon(solar.altitude) Sunshine meter(sunny) twptsiskycoverC3.a1: Time offset of tweaks from base_time(time_offset)

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DQRID : D030528.4

Start Date	Start Time	End Date	End Time
05/24/2003	2300	05/25/2003	0010

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: PNG data stream - documentation not supported(png) twptsiskycoverC2.b1: lon(lon) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: camera and sun strip mask(count.mask) Sunshine meter(sunny) lat(lat) Dummy altitude for Zeb(alt) Relative \'strength\' of direct sun(sun.strength) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number total in sun circle(region.sun.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Time offset of tweaks from base_time(time_offset) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in processed circle(count.sky) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total indeterminant(count.unknown) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Solar azimuth angle(solar.azimuth) Pixel count: number total between horizon and processed circle(count.sub.proczen) Sun altitude above horizon(solar.altitude) Pixel count: number thin in horizon area(region.horizon.count.thin) base time(base_time) Pixel count: number below horizon in image(count.sub.horz) Percent opaque cloud(percent.opaque) Pixel count: box, outside mirror area(count.box) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Percentage thin cloud(percent.thin) Pixel count: number total opaque(count.opaque) twptsiskycoverC2.a1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total in processed circle(count.sky) Sun altitude above horizon(solar.altitude) Solar azimuth angle(solar.azimuth) lat(lat) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total in sun circle(region.sun.count) Sunshine meter(sunny) Percent opaque cloud(percent.opaque) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) base time(base_time) Pixel count: number total indeterminant(count.unknown) Pixel count: number thin in sun circle(region.sun.count.thin) Time offset of tweaks from base_time(time_offset) Pixel count: box, outside mirror area(count.box) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number opaque in sun circle(region.sun.count.opaque) lon(lon) Relative \'strength\' of direct sun(sun.strength) Dummy altitude for Zeb(alt) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) twptsiC2.00: null(Raw data stream - documentation not supported) twptsiskyimageC2.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D030723.3

Start Date	Start Time	End Date	End Time
05/21/2003	0046	08/10/2003	2139

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: PNG data stream - documentation not supported(png) twptsiskycoverC2.b1: Pixel count: number total indeterminant(count.unknown) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number total in sun circle(region.sun.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number below horizon in image(count.sub.horz) Percent opaque cloud(percent.opaque) Pixel count: box, outside mirror area(count.box) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Percentage thin cloud(percent.thin) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total opaque(count.opaque) twptsiskycoverC2.a1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total indeterminant(count.unknown) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: box, outside mirror area(count.box) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number total in processed circle(count.sky) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total in sun circle(region.sun.count) Percent opaque cloud(percent.opaque) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: number total thin(count.thin) Percentage thin cloud(percent.thin) Pixel count: number total in horizon area(region.horizon.count) twptsiC2.00: null(Raw data stream - documentation not supported) twptsiskyimageC2.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D040119.1

Start Date	Start Time	End Date	End Time
12/23/2003	2149	12/24/2003	0412
12/27/2003	0655	12/27/2003	0804
12/29/2003	0645	12/29/2003	0714
12/31/2003	0233	12/31/2003	0817
01/11/2004	2015	01/12/2004	0419
01/13/2004	0344	01/13/2004	2240

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:	twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Percentage thin cloud(percent.thin) Pixel count: number total opaque(count.opaque) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: camera and sun strip mask(count.mask) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) Percent opaque cloud(percent.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D040119.2

Start Date	Start Time	End Date	End Time
01/13/2004	2240	01/17/2004	0143

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:	twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Percentage thin cloud(percent.thin) Pixel count: number total opaque(count.opaque) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: camera and sun strip mask(count.mask) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) Percent opaque cloud(percent.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D040510.1

Start Date	Start Time	End Date	End Time
12/22/2003	0800	02/01/2005	0235

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: PNG data stream - documentation not supported(png) twptsiskycoverC2.b1: lon(lon) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: camera and sun strip mask(count.mask) Sunshine meter(sunny) lat(lat) Dummy altitude for Zeb(alt) Relative \'strength\' of direct sun(sun.strength) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number total in sun circle(region.sun.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Time offset of tweaks from base_time(time_offset) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in processed circle(count.sky) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total indeterminant(count.unknown) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Solar azimuth angle(solar.azimuth) Pixel count: number total between horizon and processed circle(count.sub.proczen) Sun altitude above horizon(solar.altitude) Pixel count: number thin in horizon area(region.horizon.count.thin) base time(base_time) Pixel count: number below horizon in image(count.sub.horz) Percent opaque cloud(percent.opaque) Pixel count: box, outside mirror area(count.box) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Percentage thin cloud(percent.thin) Pixel count: number total opaque(count.opaque) twptsiskycoverC2.a1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total in processed circle(count.sky) Sun altitude above horizon(solar.altitude) Solar azimuth angle(solar.azimuth) lat(lat) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total in sun circle(region.sun.count) Sunshine meter(sunny) Percent opaque cloud(percent.opaque) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) base time(base_time) Pixel count: number total indeterminant(count.unknown) Pixel count: number thin in sun circle(region.sun.count.thin) Time offset of tweaks from base_time(time_offset) Pixel count: box, outside mirror area(count.box) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number opaque in sun circle(region.sun.count.opaque) lon(lon) Relative \'strength\' of direct sun(sun.strength) Dummy altitude for Zeb(alt) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) twptsiC2.00: null(Raw data stream - documentation not supported) twptsiskyimageC2.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D040610.2

Start Date	Start Time	End Date	End Time
06/03/2004	1135	06/10/2004	2318

Subject:	TWP/TSI/C3 - poor images
DataStreams:	twptsicldmaskC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
Description:	The resolution of TSI images were very poor and the colors were wrong. The clear sky appeared a reddish-brown during the day causing the processed image to be 100% opaque. The problem was corrected when the instrument was power cycled.
Measurements:	twptsiskycoverC3.b1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total indeterminant(count.unknown) Pixel count: number total opaque(count.opaque) Pixel count: box, outside mirror area(count.box) Percent opaque cloud(percent.opaque) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total thin(count.thin) Pixel count: number thin in horizon area(region.horizon.count.thin) Sunshine meter(sunny) Percentage thin cloud(percent.thin) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total in sun circle(region.sun.count) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Relative \'strength\' of direct sun(sun.strength) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number thin in sun circle(region.sun.count.thin) twptsicldmaskC3.a1: PNG data stream - documentation not supported(png) twptsiskyimageC3.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D041014.3

Start Date	Start Time	End Date	End Time
10/14/2004	2055	11/09/2004	1146

Subject:	TWP/TSI/C3 - camera failure
DataStreams:	twptsiskycoverC3.b1, twptsiskyimageC3.a1
Description:	The TSI image was out of focus due to condensation on the camera lens and PC board that led to camera failure. The problem was corrected by replacing the camera with a spare and adjusting the shadowband.
Measurements:	twptsiskycoverC3.b1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total indeterminant(count.unknown) Pixel count: number total opaque(count.opaque) Pixel count: box, outside mirror area(count.box) Percent opaque cloud(percent.opaque) Pixel count: number total in processed circle(count.sky) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total thin(count.thin) Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total in sun circle(region.sun.count) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number thin in sun circle(region.sun.count.thin) twptsiskyimageC3.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D050224.4

Start Date	Start Time	End Date	End Time
02/01/2005	0236	02/11/2005	0115

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: PNG data stream - documentation not supported(png) twptsiskycoverC2.b1: Pixel count: number total indeterminant(count.unknown) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Solar azimuth angle(solar.azimuth) lon(lon) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: camera and sun strip mask(count.mask) Sunshine meter(sunny) Pixel count: number total between horizon and processed circle(count.sub.proczen) lat(lat) Sun altitude above horizon(solar.altitude) Dummy altitude for Zeb(alt) Relative \'strength\' of direct sun(sun.strength) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number total in sun circle(region.sun.count) base time(base_time) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number opaque in sun circle(region.sun.count.opaque) Time offset of tweaks from base_time(time_offset) Percent opaque cloud(percent.opaque) Pixel count: box, outside mirror area(count.box) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Percentage thin cloud(percent.thin) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total opaque(count.opaque) twptsiskyimageC2.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D050224.5

Start Date	Start Time	End Date	End Time
02/03/2005	0240	02/10/2005	2238

Subject:	TWP/TSI/C3 - initial configuration
DataStreams:	twptsicldmaskC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
Description:	When the TSI-660 was deployed, there were several days of initial adjustments to the shadowband alignment and sky filter.
Measurements:	twptsiskycoverC3.b1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total indeterminant(count.unknown) Pixel count: box, outside mirror area(count.box) Sun altitude above horizon(solar.altitude) Pixel count: number total in processed circle(count.sky) Pixel count: number thin in zenith circle(region.zenith.count.thin) Dummy altitude for Zeb(alt) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: camera and sun strip mask(count.mask) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number below horizon in image(count.sub.horz) base time(base_time) Pixel count: number total opaque(count.opaque) Percent opaque cloud(percent.opaque) lon(lon) lat(lat) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Solar azimuth angle(solar.azimuth) Time offset of tweaks from base_time(time_offset) Pixel count: number total thin(count.thin) Percentage thin cloud(percent.thin) Sunshine meter(sunny) Pixel count: number total in sun circle(region.sun.count) Relative \'strength\' of direct sun(sun.strength) Pixel count: number thin in sun circle(region.sun.count.thin) twptsicldmaskC3.a1: PNG data stream - documentation not supported(png) twptsiskyimageC3.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D050331.6

Start Date	Start Time	End Date	End Time
03/29/2005	2108	03/31/2005	2230
04/09/2005	1851	04/14/2005	1950

Subject:	TWP/TSI/C2 - camera failure
DataStreams:	twptsicldmaskC2.a1, twptsimovieC2.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: PNG data stream - documentation not supported(png) twptsiskycoverC2.b1: Pixel count: number total indeterminant(count.unknown) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: camera and sun strip mask(count.mask) Sunshine meter(sunny) Pixel count: number total in sun circle(region.sun.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number below horizon in image(count.sub.horz) Percent opaque cloud(percent.opaque) Pixel count: box, outside mirror area(count.box) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Percentage thin cloud(percent.thin) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) Relative \'strength\' of direct sun(sun.strength) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: number total opaque(count.opaque) twptsiskyimageC2.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsimovieC2.a1: (MPEG data stream - documentation not yet available)

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DQRID : D050531.3

Start Date	Start Time	End Date	End Time
05/27/2005	0137	07/15/2005	2352

Subject:	TWP/TSI/C2 - Camera failure
DataStreams:	twptsiC2.00, twptsicldmaskC2.a1, twptsimovieC2.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: PNG data stream - documentation not supported(png) twptsiskycoverC2.b1: Pixel count: number total indeterminant(count.unknown) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: camera and sun strip mask(count.mask) Sunshine meter(sunny) Pixel count: number total between horizon and processed circle(count.sub.proczen) Relative \'strength\' of direct sun(sun.strength) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number total in sun circle(region.sun.count) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number opaque in sun circle(region.sun.count.opaque) Percent opaque cloud(percent.opaque) Pixel count: box, outside mirror area(count.box) Pixel count: number total in processed circle(count.sky) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Percentage thin cloud(percent.thin) Pixel count: number total thin(count.thin) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total opaque(count.opaque) twptsiC2.00: null(Raw data stream - documentation not supported) twptsiskyimageC2.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsimovieC2.a1: (MPEG data stream - documentation not yet available)

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DQRID : D050602.1

Start Date	Start Time	End Date	End Time
05/27/2005	0200	06/08/2005	0030

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:	twptsiC1.00: Raw data stream - documentation not supported(raw) twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) Pixel count: number total indeterminant(count.unknown) Relative \'strength\' of direct sun(sun.strength) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total in horizon area(region.horizon.count) Percent opaque cloud(percent.opaque) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number total in processed circle(count.sky) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: camera and sun strip mask(count.mask) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: box, outside mirror area(count.box) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D050621.2

Start Date	Start Time	End Date	End Time
06/20/2005	2012	06/22/2005	0245
06/28/2005	0302	06/30/2005	2204

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:	twptsiC1.00: Raw data stream - documentation not supported(raw) twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) Pixel count: number total indeterminant(count.unknown) Relative \'strength\' of direct sun(sun.strength) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total in horizon area(region.horizon.count) Percent opaque cloud(percent.opaque) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number total in processed circle(count.sky) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: camera and sun strip mask(count.mask) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: box, outside mirror area(count.box) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D050826.1

Start Date	Start Time	End Date	End Time
07/20/2005	0000	03/23/2006	0618

Subject:	TWP/TSI/C1 - obstruction in lens
DataStreams:	twptsiC1.00, twptsicldmaskC1.a1, twptsimovieC1.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: Raw data stream - documentation not supported(raw) twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsimovieC1.a1: (MPEG data stream - documentation not yet available) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Percentage thin cloud(percent.thin) Pixel count: number thin in horizon area(region.horizon.count.thin) Relative \'strength\' of direct sun(sun.strength) Pixel count: number total opaque(count.opaque) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total thin(count.thin) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total indeterminant(count.unknown) Pixel count: number opaque in sun circle(region.sun.count.opaque) Percent opaque cloud(percent.opaque) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number below horizon in image(count.sub.horz) Sunshine meter(sunny) Pixel count: number total in processed circle(count.sky) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: box, outside mirror area(count.box) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D051114.1

Start Date	Start Time	End Date	End Time
11/14/2005	0453	12/19/2005	0300

Subject:	TWP/TSI/C3 - Instrument failure
DataStreams:	twptsiC3.00, twptsicldmaskC3.a1, twptsimovieC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
Description:	The TSI failed due to a lightning strike. Several parts were replaced, modified, or bypassed and the system was restarted.
Measurements:	twptsiskycoverC3.b1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total indeterminant(count.unknown) Pixel count: box, outside mirror area(count.box) Sun altitude above horizon(solar.altitude) Pixel count: number total in processed circle(count.sky) Pixel count: number thin in zenith circle(region.zenith.count.thin) Dummy altitude for Zeb(alt) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: camera and sun strip mask(count.mask) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number below horizon in image(count.sub.horz) base time(base_time) Pixel count: number total opaque(count.opaque) Percent opaque cloud(percent.opaque) lon(lon) lat(lat) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Solar azimuth angle(solar.azimuth) Time offset of tweaks from base_time(time_offset) Pixel count: number total thin(count.thin) Percentage thin cloud(percent.thin) Sunshine meter(sunny) Pixel count: number total in sun circle(region.sun.count) Relative \'strength\' of direct sun(sun.strength) Pixel count: number thin in sun circle(region.sun.count.thin) twptsicldmaskC3.a1: PNG data stream - documentation not supported(png) twptsimovieC3.a1: (MPEG data stream - documentation not yet available) twptsiskyimageC3.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiC3.00: null(Raw data stream - documentation not supported)

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DQRID : D060203.1

Start Date	Start Time	End Date	End Time
01/22/2006	0900	02/24/2006	2250

Subject:	TWP/TSI/C1 - signal cable problem
DataStreams:	twptsiC1.00, twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1
Description:	Communication was lost with the TSI. The connectors on each end of the cable between the camera and the 4-port hub was replaced.
Measurements:	twptsiC1.00: Raw data stream - documentation not supported(raw) twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsimovieC1.a1: (MPEG data stream - documentation not yet available) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) Dummy altitude for Zeb(alt) Time offset of tweaks from base_time(time_offset) Relative \'strength\' of direct sun(sun.strength) lon(lon) Solar azimuth angle(solar.azimuth) Pixel count: number total opaque(count.opaque) Pixel count: camera and sun strip mask(count.mask) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) time(time) Sun altitude above horizon(solar.altitude) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total indeterminant(count.unknown) base time(base_time) Pixel count: number opaque in sun circle(region.sun.count.opaque) Percent opaque cloud(percent.opaque) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number below horizon in image(count.sub.horz) lat(lat) Sunshine meter(sunny) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: box, outside mirror area(count.box) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D060519.2

Start Date	Start Time	End Date	End Time
05/18/2006	0435	08/02/2006	0230

Subject:	TWP/TSI/C3 - controller board failure
DataStreams:	twptsicldmaskC3.a1, twptsimovieC3.a1, twptsiskycoverC3.b1, twptsiskyimageC3.a1
Description:	The mirror control board failed and was replaced with a spare. Several images were collected in the iterim that should be ignored. These images include periods when the sun was not masked by the shadowband, the camera lens was covered by red tape to protect the CCD from direct exposure to the sun and, the instrument was inside the shop for repair and testing.
Measurements:	twptsiskycoverC3.b1: Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total indeterminant(count.unknown) Pixel count: box, outside mirror area(count.box) Sun altitude above horizon(solar.altitude) Pixel count: number total in processed circle(count.sky) Pixel count: number thin in zenith circle(region.zenith.count.thin) Dummy altitude for Zeb(alt) Pixel count: number thin in horizon area(region.horizon.count.thin) Pixel count: camera and sun strip mask(count.mask) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number below horizon in image(count.sub.horz) base time(base_time) Pixel count: number total opaque(count.opaque) Percent opaque cloud(percent.opaque) lon(lon) lat(lat) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number opaque in sun circle(region.sun.count.opaque) Solar azimuth angle(solar.azimuth) Time offset of tweaks from base_time(time_offset) Pixel count: number total thin(count.thin) Percentage thin cloud(percent.thin) Sunshine meter(sunny) Pixel count: number total in sun circle(region.sun.count) Relative \'strength\' of direct sun(sun.strength) Pixel count: number thin in sun circle(region.sun.count.thin) twptsicldmaskC3.a1: PNG data stream - documentation not supported(png) twptsimovieC3.a1: (MPEG data stream - documentation not yet available) twptsiskyimageC3.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available)

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DQRID : D060718.4

Start Date	Start Time	End Date	End Time
07/18/2006	2000	07/25/2006	0350

Subject:	TWP/TSI/C1 - Shadowband continuosly rotating
DataStreams:	twptsiC1.00, twptsicldmaskC1.a1, twptsimovieC1.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:	twptsiC1.00: Raw data stream - documentation not supported(raw) twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsimovieC1.a1: (MPEG data stream - documentation not yet available) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) Pixel count: number total indeterminant(count.unknown) Relative \'strength\' of direct sun(sun.strength) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total in horizon area(region.horizon.count) Percent opaque cloud(percent.opaque) Pixel count: number below horizon in image(count.sub.horz) Pixel count: number total in processed circle(count.sky) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: camera and sun strip mask(count.mask) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: box, outside mirror area(count.box) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D060822.1

Start Date	Start Time	End Date	End Time
07/09/2006	0000	10/12/2006	0600

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: PNG data stream - documentation not supported(png) twptsiskycoverC1.b1: Percentage thin cloud(percent.thin) Pixel count: number total opaque(count.opaque) Pixel count: number total thin(count.thin) Percent opaque cloud(percent.opaque)

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DQRID : D060825.2

Start Date	Start Time	End Date	End Time
11/13/2005	0000	10/12/2006	2300

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: Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) Pixel count: number total indeterminant(count.unknown) Relative \'strength\' of direct sun(sun.strength) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number total in horizon area(region.horizon.count) Percent opaque cloud(percent.opaque) Pixel count: number below horizon in image(count.sub.horz) Sunshine meter(sunny) Solar azimuth angle(solar.azimuth) Pixel count: number total in processed circle(count.sky) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: camera and sun strip mask(count.mask) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) Sun altitude above horizon(solar.altitude) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: number total in sun circle(region.sun.count) Pixel count: box, outside mirror area(count.box)

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DQRID : D060915.2

Start Date	Start Time	End Date	End Time
08/29/2006	1900	01/30/2007	0010

Subject:	TWP/TSI/C1 - solar shadowband inoperative
DataStreams:	twptsicldmaskC1.a1, twptsimovieC1.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:	twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsimovieC1.a1: (MPEG data stream - documentation not yet available) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Pixel count: number thin in horizon area(region.horizon.count.thin) Percentage thin cloud(percent.thin) Dummy altitude for Zeb(alt) Time offset of tweaks from base_time(time_offset) Relative \'strength\' of direct sun(sun.strength) lon(lon) Solar azimuth angle(solar.azimuth) Pixel count: number total opaque(count.opaque) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total thin(count.thin) time(time) Pixel count: number thin in sun circle(region.sun.count.thin) Sun altitude above horizon(solar.altitude) Pixel count: number opaque in horizon area(region.horizon.count.opaque) Pixel count: number thin in zenith circle(region.zenith.count.thin) Pixel count: number total indeterminant(count.unknown) base time(base_time) Pixel count: number opaque in sun circle(region.sun.count.opaque) Percent opaque cloud(percent.opaque) Pixel count: number total in horizon area(region.horizon.count) Pixel count: number below horizon in image(count.sub.horz) lat(lat) Sunshine meter(sunny) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in zenith circle(region.zenith.count.opaque) Pixel count: number total in zenith circle(region.zenith.count) Pixel count: number total between horizon and processed circle(count.sub.proczen) Pixel count: box, outside mirror area(count.box) Pixel count: number total in sun circle(region.sun.count)

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DQRID : D080502.3

Start Date	Start Time	End Date	End Time
04/09/2006	2300	04/11/2006	0600

Subject:	TWP/TSI/C3 - mirror continously rotating
DataStreams:	twptsicldmaskC3.a1, twptsiskycoverC3.b1
Description:	The mirror/shadowband was rotating continously because of a serial communication problem with the control board. The problem was corrected when the Ethernet-to-serial adaptor was replaced.
Measurements:	twptsiskycoverC3.b1: Pixel count: number total thin(count.thin) Pixel count: number total opaque(count.opaque) Percent opaque cloud(percent.opaque) Percentage thin cloud(percent.thin) Pixel count: number total in sun circle(region.sun.count) Pixel count: camera and sun strip mask(count.mask) Pixel count: number total in processed circle(count.sky) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number thin in sun circle(region.sun.count.thin) twptsicldmaskC3.a1: PNG data stream - documentation not supported(png)

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DQRID : D080506.1

Start Date	Start Time	End Date	End Time
03/20/2006	1820	03/23/2006	0425

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:	twptsicldmaskC1.a1: PNG data stream - documentation not supported(png) twptsiskyimageC1.a1: JPG data stream - documentation not supported(JPEG data stream - documentation not yet available) twptsiskycoverC1.b1: Percentage thin cloud(percent.thin) Pixel count: number total opaque(count.opaque) Pixel count: number opaque in sun circle(region.sun.count.opaque) Pixel count: number thin in sun circle(region.sun.count.thin) Pixel count: number total thin(count.thin) Percent opaque cloud(percent.opaque) Pixel count: number total in sun circle(region.sun.count)

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