DQR ID | Subject | Data Streams Affected |
---|---|---|
D050826.1 | TWP/TSI/C1 - obstruction in lens | twptsiC1.00, twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1 |
D060307.4 | NIM/TSI/M1 - Reprocess: incorrect daily movies | nimtsimovieM1.a1 |
D060419.1 | NIM/TSI/M1 - Reprocess: Data processing problem | nimtsicldmaskM1.a1, nimtsiskycoverM1.b1 |
D060515.1 | SGP/TSI/C1 - Birds obstructing view | sgptsicldmaskC1.a1, sgptsimovieC1.a1, sgptsiskyimageC1.a1 |
D060519.2 | TWP/TSI/C3 - controller board failure | twptsiskycoverC3.b1, twptsicldmaskC3.a1, twptsimovieC3.a1, 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 |
D060921.9 | NIM/TSI/M1 - Shadowband Misalignment | nimtsicldmaskM1.a1, nimtsimovieM1.a1, nimtsiskyimageM1.a1 |
D061024.1 | NIM/TSI/M1 - Shadowband glare | nimtsiskycoverM1.b1 |
D070203.3 | TWP/TSI/C2 - hazy image | twptsicldmaskC2.a1, twptsimovieC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1 |
D070406.8 | TWP/TSI/C1 - hazy image | twptsicldmaskC1.a1, twptsimovieC1.a1, twptsiskycoverC1.b1, twptsiskyimageC1.a1 |
D070608.2 | NSA/TSI/C1 - camera lens covered | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
D070608.3 | NSA/TSI/C1 - shadowband misaligned | nsatsiskycoverC1.b1, nsatsiskyimageC1.a1, nsatsicldmaskC1.a1 |
D080108.3 | TWP/TSI/C2 - Mirror continuously rotating | twptsicldmaskC2.a1, twptsimovieC2.a1, twptsiskycoverC2.b1, twptsiskyimageC2.a1 |
D080204.1 | FKB/TSI/M1 - Reprocess: Missing time annotation | fkbtsimovieM1.a1 |
D080324.2 | TWP/TSI/C2 - Shadowband Misalignment | twptsiskycoverC2.b1 |
D080331.3 | NSA/TSI/C1 - frost/condensation in lens | nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
D080411.2 | SGP/TSI/C1 - Missing data | sgptsicldmaskC1.a1, sgptsimovieC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1 |
D080414.2 | SGP/TSI/C1 - Contamination of mirror | sgptsiskycoverC1.b1, sgptsiskyimageC1.a1, sgptsicldmaskC1.a1, sgptsimovieC1.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 |
D080912.1 | TWP/TSI/C1 - Missing data | twptsiskycoverC1.b1, twptsiskyimageC1.a1, twptsicldmaskC1.a1, twptsimovieC1.a1 |
D090302.1 | NSA/TSI/C1 - Mirror frozen | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
D090506.1 | TWP/TSI/C1 - Shadowband Misalignment | twptsiskycoverC1.b1 |
D090604.1 | GRW/TSI/M1 - Mirror reflection | grwtsiskycoverM1.b1 |
D090729.1 | TWP/TSI/C3 - Reprocess: Missing daily movies | twptsimovieC3.a1 |
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:
twptsiskyimageC1.a1:
twptsimovieC1.a1:
twptsicldmaskC1.a1:
twptsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/11/2006 | 0633 | 03/08/2006 | 2359 |
Subject: | NIM/TSI/M1 - Reprocess: incorrect daily movies |
DataStreams: | nimtsimovieM1.a1 |
Description: | Due to file management problems on the operating computer, the daily movie files are either missing, incomplete, or contain images from other days. |
Measurements: | nimtsimovieM1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/24/2005 | 0000 | 09/19/2006 | 1729 |
Subject: | NIM/TSI/M1 - Reprocess: Data processing problem |
DataStreams: | nimtsicldmaskM1.a1, nimtsiskycoverM1.b1 |
Description: | Due to the high aerosol conditions at Niamey, the TSI appeared to be beyond the limits of processing the color JPEG image into cloud fraction values. Several attempts to adjust the sky filter values used to process the images did not yielded the desired results. The processed images indicate an opaque sky cover, even in the absence of clouds. The problem was corrected by removing the neutral density filter from the lens and re-adjusting the sky filter values. The data can be reprocessed. |
Measurements: | nimtsicldmaskM1.a1:
nimtsiskycoverM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/02/2006 | 0000 | 06/14/2006 | 1525 |
04/20/2005 | 0000 | 06/05/2005 | 2359 |
Subject: | SGP/TSI/C1 - Birds obstructing view |
DataStreams: | sgptsicldmaskC1.a1, sgptsimovieC1.a1, sgptsiskyimageC1.a1 |
Description: | Birds were frequently in the the field-of-view and soiling the mirror, affecting the visible sky image and resulting processed cloud fraction image. Bird deterant spikes were installed on top of the camera housing and arm on 5/16 which prevented their perching on the camera so that the impact on the sky image was reduced. But birds were still present around the edges of the mirror until additional spikes were installed on top of the four corners of the enclosure on 6/14. |
Measurements: | sgptsicldmaskC1.a1:
sgptsiskyimageC1.a1:
sgptsimovieC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/18/2006 | 0435 | 08/02/2006 | 0230 |
Subject: | TWP/TSI/C3 - controller board failure |
DataStreams: | twptsiskycoverC3.b1, twptsicldmaskC3.a1, twptsimovieC3.a1, 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: | twptsimovieC3.a1:
twptsiskycoverC3.b1:
twptsiskyimageC3.a1:
twptsicldmaskC3.a1:
|
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: | twptsiskyimageC1.a1:
twptsiC1.00:
twptsimovieC1.a1:
twptsicldmaskC1.a1:
twptsiskycoverC1.b1:
|
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:
twptsiskycoverC1.b1:
|
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:
|
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: | twptsiskyimageC1.a1:
twptsimovieC1.a1:
twptsicldmaskC1.a1:
twptsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/20/2006 | 1820 | 09/29/2006 | 0945 |
Subject: | NIM/TSI/M1 - Shadowband Misalignment |
DataStreams: | nimtsicldmaskM1.a1, nimtsimovieM1.a1, nimtsiskyimageM1.a1 |
Description: | From installation, the shadowband was positioned south at solar noon until the vernal equinox when it began to migrate counter-clockwise until reaching east 37 days later on 4/26 (about 9 days before mid-spring). The shadowband at solar noon continued to migrate until reaching its most northerly position (~15 deg) on the summer solstice (if everything was perfectly aligned, it probably would have been pointed north on this day). It then began to migrate clockwise and reached east again 56 days later on 8/16 (about 14 days after mid-summer). As expected, the shadowband reached its most southerly position on the autumnal equinox but was about 10 deg off of being due south. With the apparent alignment problem, I don't understand why the shadowband was mostly blocking the sun. When I started noticing this offset in May, I chose to leave it alone because I felt that adjusting the shadowband to where I thought it should be would cause it to not block the sun at either sunrise or sunset. The alignment was corrected on 9/29 (6 days after the day of the autumnal equinox). |
Measurements: | nimtsimovieM1.a1:
nimtsicldmaskM1.a1:
nimtsiskyimageM1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/17/2006 | 1310 | 11/01/2006 | 0700 |
Subject: | NIM/TSI/M1 - Shadowband glare |
DataStreams: | nimtsiskycoverM1.b1 |
Description: | When the neutral density filter was removed from the lens, the reflection of the sun from the smooth shadowband strip became much brighter causing a glare in the image on clear days. To minimize this reflection, a rough surface (the "fuzzy" side of an adhesive velco strip) was placed along the length of the shadowband. |
Measurements: | nimtsiskycoverM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/11/2007 | 1900 | 02/13/2007 | 0447 |
Subject: | TWP/TSI/C2 - hazy image |
DataStreams: | twptsicldmaskC2.a1, twptsimovieC2.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:
twptsiskycoverC2.b1:
twptsiskyimageC2.a1:
twptsimovieC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/30/2007 | 0011 | 02/01/2007 | 0035 |
Subject: | TWP/TSI/C1 - hazy image |
DataStreams: | twptsicldmaskC1.a1, twptsimovieC1.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:
twptsimovieC1.a1:
twptsicldmaskC1.a1:
twptsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/13/2007 | 2131 | 04/20/2007 | 1826 |
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:
nsatsicldmaskC1.a1:
nsatsiskyimageC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/26/2007 | 1606 | 04/13/2007 | 2130 |
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:
nsatsicldmaskC1.a1:
nsatsiskyimageC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/20/2007 | 1849 | 03/05/2008 | 0200 |
Subject: | TWP/TSI/C2 - Mirror continuously rotating |
DataStreams: | twptsicldmaskC2.a1, twptsimovieC2.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:
twptsiskycoverC2.b1:
twptsiskyimageC2.a1:
twptsimovieC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/06/2007 | 0000 | 12/31/2007 | 2359 |
Subject: | FKB/TSI/M1 - Reprocess: Missing time annotation |
DataStreams: | fkbtsimovieM1.a1 |
Description: | The time annotation in the MPeg movie is missing. |
Measurements: | fkbtsimovieM1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/24/2008 | 1858 | 03/24/2008 | 2244 |
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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/07/2008 | 0000 | 04/08/2008 | 2327 |
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:
nsatsiskyimageC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/23/2007 | 2110 | 08/27/2007 | 1530 |
Subject: | SGP/TSI/C1 - Missing data |
DataStreams: | sgptsicldmaskC1.a1, sgptsimovieC1.a1, sgptsiskycoverC1.b1, sgptsiskyimageC1.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgptsicldmaskC1.a1:
sgptsiskyimageC1.a1:
sgptsimovieC1.a1:
sgptsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/21/2008 | 0000 | 04/15/2008 | 1600 |
Subject: | SGP/TSI/C1 - Contamination of mirror |
DataStreams: | sgptsiskycoverC1.b1, sgptsiskyimageC1.a1, sgptsicldmaskC1.a1, sgptsimovieC1.a1 |
Description: | A persistent bird was landing on and polluting the mirror, multiple times throughout the day. Spikes were placed on the corners and top of the instrument (an affective deterrent in the past) but this bird had the agility to perch on the top-center of the mirror. |
Measurements: | sgptsicldmaskC1.a1:
sgptsiskyimageC1.a1:
sgptsimovieC1.a1:
sgptsiskycoverC1.b1:
|
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:
twptsicldmaskC3.a1:
|
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: | twptsiskyimageC1.a1:
twptsicldmaskC1.a1:
twptsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/18/2006 | 0000 | 07/19/2006 | 2359 |
07/23/2006 | 0000 | 07/24/2006 | 2359 |
08/29/2006 | 0000 | 01/29/2007 | 2359 |
08/22/2007 | 0000 | 08/23/2007 | 2359 |
08/21/2008 | 0000 | 04/22/2009 | 0133 |
12/28/2009 | 0222 | 01/25/2010 | 0059 |
11/12/2005 | 0000 | 11/16/2005 | 2359 |
01/22/2006 | 0000 | 02/23/2006 | 2359 |
01/21/2012 | 0824 | 02/08/2012 | 2208 |
Subject: | TWP/TSI/C1 - Missing data |
DataStreams: | twptsiskycoverC1.b1, twptsiskyimageC1.a1, twptsicldmaskC1.a1, twptsimovieC1.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | twptsiskyimageC1.a1:
twptsimovieC1.a1:
twptsicldmaskC1.a1:
twptsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/28/2009 | 1813 | 02/28/2009 | 2125 |
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:
nsatsicldmaskC1.a1:
nsatsiskyimageC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/22/2009 | 0133 | 06/30/2009 | 0214 |
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:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/14/2009 | 1500 | 06/19/2009 | 1540 |
Subject: | GRW/TSI/M1 - Mirror reflection |
DataStreams: | grwtsiskycoverM1.b1 |
Description: | A deformity in the mirror produced an anomolous refraction within the mirror surface that appeared in the images as a white streak near the top of the mirror and shadowband. The mirror was replaced on 6/19. |
Measurements: | grwtsiskycoverM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/22/2009 | 2138 | 07/29/2009 | 2210 |
Subject: | TWP/TSI/C3 - Reprocess: Missing daily movies |
DataStreams: | twptsimovieC3.a1 |
Description: | The computer began "locking-up" every day at 11:15 UTC when the program that makes the daily movies is automatically run. Site Operations had to reboot the computer everyday upon arrival at about 21:30. On 7/28, basic disk maintenance was performed that included error-checking, file purging, and defragmentation. On 7/29, file management was performed, the programs to create the missing daily movies was manually run, and the times of scheduled tasks were optimized. |
Measurements: | twptsimovieC3.a1:
|