DQR ID | Subject | Data Streams Affected | Data Quality Metric |
---|---|---|---|
D110607.6 | NSA/KAZR/C1 - Polarizer rotated | nsakazrgeC1.a1 | Incorrect |
D120913.2 | NSA/KAZR/C1 - PLO Failure | nsakazrmdC1.a1, nsakazrgeC1.a1 | Incorrect |
D121218.1 | NSA/KAZR/C1 - Reprocessing Notice (RID 836 ) | nsakazrmdC1.a1, nsakazrgeC1.a1 | Does not affect quality |
D131120.3 | NSA/KAZR/C1 - Reprocess: Incorrect calibration coefficients | nsakazrmdC1.a1, nsakazrgeC1.a1 | Incorrect |
D140114.1 | NSA/KAZR/C1 - Shift in Background Reflectivity and Signal-to-Noise Ratio | nsakazrgeC1.a1, nsakazrmdC1.a1 | Suspect |
D140303.4 | NSA/RWP/C1 - Phase shifter bad and upgrade of OS | nsa915rwprawC1.00 | Missing |
D141013.7 | NSA/KAZR/C1 - Snow decreasing sensitivity | nsakazrgeC1.a1, nsakazrmdC1.a1 | Suspect |
D150429.1 | NSA/KAZR/C1 - Reprocessing Notice (RID 1325) | nsakazrmdC1.a1 | Does not affect quality |
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/12/2011 | 2300 | 07/29/2011 | 0400 | Incorrect |
Subject: | NSA/KAZR/C1 - Polarizer rotated |
DataStreams: | nsakazrgeC1.a1 |
Description: | The cross-polarization returns were higher than the co-polarization returns causing a positive linear depolarization ration. This cannot be correct. Upon further investigation, it was suggested that waveguide going to the antenna feed polarizer was possibly rotated by 45 degrees resulting in the antenna transmitting circular polarization rather than linear polarization. Rotating the polarizer in June did not correct the problem. It turns out that there is a polarizer in the antenna feed. Rotated the OMT by 45 degrees and substituted micro-coax cable instead of waveguide. During the time covered by this DQR, the "co-polarization" variables are circularly polarized opposite of the transmitted polarization. The "cross-polarization" variables are the same circular polarization as the transmitted signal. |
Measurements: | nsakazrgeC1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/29/2012 | 2000 | 02/14/2012 | 1800 | Incorrect |
Subject: | NSA/KAZR/C1 - PLO Failure |
DataStreams: | nsakazrmdC1.a1, nsakazrgeC1.a1 |
Description: | Streaks began showing up in radar data (reflectivity, doppler velocity, spectral width, SNR) at semi regular intervals. Problem was a failed 16.560 GHz Phase Lock Oscillator (PLO). PLO was replaced 20120214. |
Measurements: | nsakazrmdC1.a1:
nsakazrgeC1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
05/12/2011 | 0000 | 12/14/2012 | 1659 | Does not affect quality |
Subject: | NSA/KAZR/C1 - Reprocessing Notice (RID 836 ) |
DataStreams: | nsakazrmdC1.a1, nsakazrgeC1.a1 |
Description: | See below for details of reprocessing that was completed on 20141223. Original DQR category: 4 (Red, Incorrect) ----------------------------------------------------------------------------- The calibration constants for the modes were incorrect. The coefficients used were BL: -34.70 dB GE: -18.69 dB The correct coefficients are BL: -22.21dB GE: -13.14 dB |
Measurements: | nsakazrmdC1.a1:
nsakazrgeC1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
01/18/2011 | 0000 | 02/07/2014 | 2359 | Incorrect |
Subject: | NSA/KAZR/C1 - Reprocess: Incorrect calibration coefficients |
DataStreams: | nsakazrmdC1.a1, nsakazrgeC1.a1 |
Description: | reflectivity between long and short pulse did not agree with each other after analyzing data. Data will be reprocessed. |
Measurements: | nsakazrmdC1.a1:
nsakazrgeC1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
12/14/2012 | 1650 | 03/17/2013 | 1835 | Suspect |
Subject: | NSA/KAZR/C1 - Shift in Background Reflectivity and Signal-to-Noise Ratio |
DataStreams: | nsakazrgeC1.a1, nsakazrmdC1.a1 |
Description: | The KAZR experienced an abrupt shift in the background reflectivity on 12/14/2012, followed by a shift in the background Signal-to-Noise Ratio on 12/16/2012. The background levels then revert back to "normal" levels on 3/17/2013. Cause is currently unknown. |
Measurements: | nsakazrmdC1.a1:
nsakazrgeC1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
10/23/2013 | 1500 | 10/29/2014 | 2110 | Missing |
Subject: | NSA/RWP/C1 - Phase shifter bad and upgrade of OS |
DataStreams: | nsa915rwprawC1.00 |
Description: | No data available |
Measurements: | nsa915rwprawC1.00:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
09/02/2014 | 2100 | 09/03/2014 | 1820 | Suspect |
Subject: | NSA/KAZR/C1 - Snow decreasing sensitivity |
DataStreams: | nsakazrgeC1.a1, nsakazrmdC1.a1 |
Description: | There was a possible build up of snow on the instrument causing decreased sensitivity in the returns. |
Measurements: | nsakazrmdC1.a1:
nsakazrgeC1.a1:
|
Start Date | Start Time | End Date | End Time | Data Quality Metric |
---|---|---|---|---|
03/11/2015 | 1600 | 05/01/2015 | 1859 | Does not affect quality |
Subject: | NSA/KAZR/C1 - Reprocessing Notice (RID 1325) |
DataStreams: | nsakazrmdC1.a1 |
Description: | DATA REPROCESSED. Data was reprocessed on 20160216 to fix issues noted in the original DQR copied below. ------------------------------------------------------------------------- The copolar signal-to-noise-ratio is incorrectly being reported as zero. |
Measurements: | nsakazrmdC1.a1:
|