DQR ID | Subject | Data Streams Affected |
---|---|---|
D060713.2 | TWP/MMCR/C1 - Reprocess: Reflectivities too high | twpmmcrmomC1.b1 |
D070112.1 | TWP/MMCR/C1 - Reprocess: Height Error | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
D070125.1 | TWP/MMCR/C1 - Phase lock faults | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
D070129.1 | TWP/MMCR/C1 - Error in recorded heights | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
D070131.1 | TWP/MMCR/C1 - Receiver locked up | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/16/2006 | 0300 | 06/20/2006 | 2100 |
Subject: | TWP/MMCR/C1 - Reprocess: Reflectivities too high |
DataStreams: | twpmmcrmomC1.b1 |
Description: | After the upgrade to PIRAQ-III, the reflectivies are too high by ~ 23 dBZ. The problem was caused by a failure of one of the power supplies that turned off one of the rf switches. The data can be used but 23 dB should be subtracted from the reported values. Due to the unknown exact isolation the rf switch offers, one should assume that the reflectivity will then be accurate to +/- 3 dBZ. |
Measurements: | twpmmcrmomC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/16/2006 | 0300 | 01/11/2007 | 1620 |
Subject: | TWP/MMCR/C1 - Reprocess: Height Error |
DataStreams: | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
Description: | A timing error was found in the PIRAQ MMCR's. It resulted in recorded heights being too high for each radar mode by the following amounts: Mode 1: 24.8756 m too high Mode 2: 25.6249 m too high Mode 3: 33.1176 m too high Mode 4: 33.1176 m too high Range gate spacing was not affected. |
Measurements: | twpmmcrmomC1.b1:
twpmmcrspecmomC1.a0:
twpmmcrmomC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/25/2007 | 0630 | 01/25/2007 | 1525 |
Subject: | TWP/MMCR/C1 - Phase lock faults |
DataStreams: | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
Description: | Phase lock faults on the coherent up/down converter (CUDC) caused a receiver failure. Cycling the power on the CUDC brought the MMCR back to normal operation. |
Measurements: | twpmmcrmomC1.b1:
twpmmcrspecmomC1.a0:
twpmmcrmomC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/16/2006 | 0300 | 11/28/2006 | 2359 |
Subject: | TWP/MMCR/C1 - Error in recorded heights |
DataStreams: | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
Description: | An error in MMCR configuration resulted in a timing error. This caused erroneous height values (too large) to be recorded in the data files. |
Measurements: | twpmmcrmomC1.b1:
twpmmcrspecmomC1.a0:
twpmmcrmomC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/27/2007 | 2200 | 01/31/2007 | 0100 |
Subject: | TWP/MMCR/C1 - Receiver locked up |
DataStreams: | twpmmcrmomC1.00, twpmmcrmomC1.b1, twpmmcrspecmomC1.a0 |
Description: | The MMCR receiver "locked up" and was not receiving during this period. |
Measurements: | twpmmcrmomC1.b1:
twpmmcrspecmomC1.a0:
twpmmcrmomC1.00:
|