DQR ID | Subject | Data Streams Affected |
---|---|---|
D010504.2 | NSA/MWR/C2 - Missing data | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D050830.1 | NSA/MWR/C2 - Thermally unstable | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D050928.4 | NSA/MWR/C2 - New software version (4.15) installed | nsamwrlosC2.b1, nsamwrtipC2.a1 |
D060223.1 | NSA/MWR/C2 - Frosting/Condensation | nsamwrC2.00, nsamwrlosC2.b1, nsamwrtipC2.a1 |
D070608.2 | NSA/TSI/C1 - camera lens covered | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
D070608.3 | NSA/TSI/C1 - shadowband misaligned | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.a1 |
D080811.1 | NSA/MWR/C2 - Occasional thermal instability | nsa5mwravgC2.c1, nsamwrlosC2.b1, nsamwrtipC2.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/26/1999 | 0003 | 11/02/1999 | 0008 |
11/09/1999 | 0004 | 12/27/1999 | 0008 |
12/28/1999 | 0004 | 01/08/2000 | 0008 |
01/11/2000 | 0004 | 01/20/2000 | 0428 |
03/11/2000 | 0218 | 03/22/2000 | 0449 |
04/16/2000 | 1536 | 04/18/2000 | 0540 |
06/09/2000 | 0605 | 06/12/2000 | 0408 |
09/28/2000 | 0036 | 09/30/2000 | 0132 |
02/03/2001 | 0208 | 02/05/2001 | 0014 |
06/23/2001 | 0000 | 06/25/2001 | 1820 |
07/01/2001 | 2000 | 07/04/2001 | 1745 |
07/15/2001 | 1800 | 07/17/2001 | 1650 |
11/17/2001 | 0300 | 11/28/2001 | 2332 |
01/21/2002 | 2221 | 01/23/2002 | 0417 |
04/02/2002 | 0000 | 04/03/2002 | 0151 |
04/15/2002 | 2324 | 04/17/2002 | 0108 |
07/21/2002 | 1800 | 07/23/2002 | 0448 |
12/18/2002 | 2218 | 01/28/2003 | 2115 |
02/17/2003 | 1842 | 02/25/2003 | 2044 |
09/22/2005 | 1932 | 10/01/2005 | 1700 |
08/28/2006 | 2000 | 04/15/2008 | 1519 |
11/10/2008 | 1900 | 11/13/2008 | 2309 |
Subject: | NSA/MWR/C2 - Missing data |
DataStreams: | nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | Data are missing and unrecoverable. |
Measurements: | nsamwrlosC2.b1:
nsamwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/12/2005 | 1200 | 08/16/2005 | 2300 |
Subject: | NSA/MWR/C2 - Thermally unstable |
DataStreams: | nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | Between 08/12 and 08/17 the instrument displayed some intermittent thermal instability. Measurement accuracy may be degraded during these time periods. Periods of thermal instability may be identified by checking the black body temperature Tkbb. If Tkbb > 303K (30 C) the instrument is unstable. |
Measurements: | nsamwrlosC2.b1:
nsamwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/20/2002 | 0251 | 09/15/2005 | 1722 |
Subject: | NSA/MWR/C2 - New software version (4.15) installed |
DataStreams: | nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | A problem began with the installation of MWR.EXE version 4.12 in September 2002. The software had been upgraded from a "DOS" to a "Windows"-compiled program to address an earlier problem. The software upgrade corrected the earlier problem but introduced a new one that caused line-of-sight observing cycles to be skipped, a 15% reduction in the number of tip curves, and saturation of CPU usage. Software versions 4.13 and 4.14 also produced these problems. The new MWR software version (4.15) was installed on 9/15/2005. As a consequence of this upgrade, the tip curve frequency increased. The tip cycle time decreased from ~60s to ~50s. |
Measurements: | nsamwrlosC2.b1:
nsamwrtipC2.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/22/2006 | 0000 | 02/24/2006 | 2359 |
Subject: | NSA/MWR/C2 - Frosting/Condensation |
DataStreams: | nsamwrC2.00, nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | Doug reported freezing winds and ice accumulation on the MWR cover and radome. This may affect data quality and calibration. On 2/24 Doug attempted to slowly thaw the cover and clear the window. From 2/22 to 2/24 the LWP and PWV reported by the MWR are near zero. These data are probably affected by the frost accumulated on the radiometer window. |
Measurements: | nsamwrlosC2.b1:
nsamwrC2.00:
nsamwrtipC2.a1:
|
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: | nsatsiskyimageC1.a1:
nsatsicldmaskC1.a1:
nsatsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/26/2007 | 1606 | 04/13/2007 | 2130 |
Subject: | NSA/TSI/C1 - shadowband misaligned |
DataStreams: | nsatsicldmaskC1.a1, nsatsiskycoverC1.b1, nsatsiskyimageC1.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: | nsatsiskyimageC1.a1:
nsatsicldmaskC1.a1:
nsatsiskycoverC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/01/2008 | 0000 | 07/15/2008 | 0000 |
Subject: | NSA/MWR/C2 - Occasional thermal instability |
DataStreams: | nsa5mwravgC2.c1, nsamwrlosC2.b1, nsamwrtipC2.a1 |
Description: | Between 7/1 and 7/15 the radiometer experienced a few days of thermal instability. From a review of the data it doesn't appear that the instability has had any major effect. It is not possible to quantify in detail the effect of the instability due to the lack of radiosonde sounding, however users are cautioned that a higher uncertainty may be affecting these data. |
Measurements: | nsa5mwravgC2.c1:
nsamwrlosC2.b1:
nsamwrtipC2.a1:
|