DQR ID | Subject | Data Streams Affected |
---|---|---|
D121106.1 | MAG/TSI/M1 - Water on lens | magtsiskycoverM1.b1 |
D130116.4 | MAG/TSI/M1 - Shadowband misalignment | magtsicldmaskM1.a1, magtsiskycoverM1.b1, magtsiskyimageM1.a1 |
D130718.13 | MAG/TSI/M1 - Data processing problem | magtsiskycoverM1.b1 |
D130911.5 | MAG/MPL/M1 - Instrument problem | magmplpolfsM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/25/2012 | 2159 | 11/01/2012 | 1730 |
Subject: | MAG/TSI/M1 - Water on lens |
DataStreams: | magtsiskycoverM1.b1 |
Description: | After a rain episode, drops of water collected on the lens window causing the cloud fraction values to be suspect. To prevent this, a drip edge was formed around the bottom of the enclosure with thick electrical or splicing tape. |
Measurements: | magtsiskycoverM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/25/2012 | 2159 | 11/08/2012 | 1745 |
Subject: | MAG/TSI/M1 - Shadowband misalignment |
DataStreams: | magtsicldmaskM1.a1, magtsiskycoverM1.b1, magtsiskyimageM1.a1 |
Description: | The mirror was not being controlled correctly so the shadowband did not block the sun because the encoder failed. Also, the shadowband was not correctly positioned in the processed image while at port because the INS system failed. On 10/19 while at Long Beach port, the encoder was replaced and software was installed to get the mirror control board to receive the SeaNav data and correctly position the shadowband to mask the sun in the visible image. However, the position of the shadowband in the processed image was not correct because the imaging software needed to be configured to independently read the SeaNav information. On 11/8 while at Honolulu port, the TSI software was upgraded at 17:10 and the position of the shadowband in the processed image was corrected. However, because SeaNav failed and course-over-ground was being used as a surrogate for heading, the heading is 0 deg when the ship speed is < 1 m/s. So the platform heading was changed manually at 17:45 to correct the position of the shadowband in the visible image while the ship was in port. This method was used by the site technicians to configure the TSI upon arrival and departure at port until the ship navigation system was replaced on 12/7 at 9:00. The $TSINV heading value became accurate while in port so the position of the TSI shadowband was automatically controlled correctly both at sea and at port. |
Measurements: | magtsiskycoverM1.b1:
magtsiskyimageM1.a1:
magtsicldmaskM1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/25/2012 | 0000 | 09/26/2013 | 2359 |
Subject: | MAG/TSI/M1 - Data processing problem |
DataStreams: | magtsiskycoverM1.b1 |
Description: | Values of count_opaque and count_thin are reals but should be integers (units = pixels). |
Measurements: | magtsiskycoverM1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/03/2013 | 0000 | 06/03/2013 | 2200 |
Subject: | MAG/MPL/M1 - Instrument problem |
DataStreams: | magmplpolfsM1.b1 |
Description: | Backscatter image is indicating some strange artifact at 3-5 km with higher than expected returns. The ship is currently at sea, so I am not able to look at the data directly. The only indication of the issue is with this comparison plot. Rich, what do you think. Could a reboot help with this issue? |
Measurements: | magmplpolfsM1.b1:
|