DQR ID | Subject | Data Streams Affected |
---|---|---|
D010718.1 | NSA/MMCR/C1 - MMCR Data Quality | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrpowC1.00, nsammcrmomentsC1.00, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
D020606.1 | NSA/MMCR/C1 - NSA/C1/MMCR- Incorrect Calibrations | nsammcrcalC1.a1, nsaarscl1clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
D020730.1 | NSA/MMCR/C1 - MUX/ADC Failure; data missing | nsammcrC1.00, nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrmonC1.a1, nsammcrpowC1.00, nsammcrpowC1.a1, nsammcrmomentsC1.00, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
D020823.37 | NSA/MMCR/C1 - Pulse controller failed due to water damage | nsammcrcalC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1, nsaarscl1clothC1.c1, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
D020823.38 | NSA/MMCR/C1 - No radar pulse transmission | nsammcrcalC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1, nsaarscl1clothC1.c1, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
D020823.39 | NSA/MMCR/C1 - MUX failure | nsammcrcalC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1, nsaarscl1clothC1.c1, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
D030707.5 | NSA/MMCR/C1 - Transmitter tube faults | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmomentsC1.00, nsammcrmomentsC1.a1 |
D030716.1 | NSA/MMCR/C1 - TWTA is inoperative | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrmonC1.a1 |
D031124.10 | NSA/MMCR/C1 - Sudden Drop in Reflectivity | nsammcrcalC1.a1, nsammcrmonC1.a1 |
D040319.14 | NSA/MMCR/C1 - Reprocess: Incorrect Heights | nsammcrcalC1.a1 |
D040419.2 | NSA/MMCR/C1 - Upgrade in process | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrmonC1.a1, nsammcrpowC1.00, nsammcrmomentsC1.00, nsammcrmomentsC1.a1 |
D050503.17 | NSA/MMCR/C1 - Intermittent missing data due to instrument collection problems | nsammcrcalC1.a1, nsammcrpowC1.a1, nsammcrmomentsC1.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/01/2001 | 0000 | 07/31/2001 | 2359 |
Subject: | NSA/MMCR/C1 - MMCR Data Quality |
DataStreams: | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrpowC1.00, nsammcrmomentsC1.00, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
Description: | The NSA at Barrow was experiencing technical difficulties related to hardware problems. Water was found in a waveguide, which may adveresly impact sensitivity. An up-down converter problem was also found. This problem may also impact sensitivity. The quality of the radar calibration during this period is unknown, but will be determined at a later date. |
Measurements: | nsammcrcalC1.00:
nsammcrmomentsC1.a1:
nsammcrmode01v0091clothC1.c1:
nsammcrmode03v0081clothC1.c1:
nsammcrmomentsC1.00:
nsammcrmode02v0061clothC1.c1:
nsammcrmode04v0061clothC1.c1:
nsammcrpowC1.00:
nsammcrmonC1.00:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/03/2001 | 0000 | 07/26/2001 | 2359 |
Subject: | NSA/MMCR/C1 - NSA/C1/MMCR- Incorrect Calibrations |
DataStreams: | nsammcrcalC1.a1, nsaarscl1clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
Description: | From 3-July 2001 to 26-July 2001, the NSA MMCR calibration for the two coded pulse modes is incorrect. The values of reflectivity computed by the radars autocalibration software are wrong because they use the wrong radar constant. The correct radar constants are: 8-bit coded mode RC=16.344 and for the 32-bit coded RC=7.313. The only impact of the incorrect radar constants should be reflectivity value |
Measurements: | nsammcrmode03v0081clothC1.c1:
nsammcrmode04v0061clothC1.c1:
nsaarscl1clothC1.c1:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
05/21/2002 | 0000 | 06/23/2002 | 2359 |
Subject: | NSA/MMCR/C1 - MUX/ADC Failure; data missing |
DataStreams: | nsammcrC1.00, nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrmonC1.a1, nsammcrpowC1.00, nsammcrpowC1.a1, nsammcrmomentsC1.00, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
Description: | MMCR had failed (ref: PIF 020522). During this period, no MMCR data was produced. |
Measurements: | nsammcrmonC1.a1:
nsammcrmomentsC1.a1:
nsammcrcalC1.00:
nsammcrpowC1.a1:
nsammcrmomentsC1.00:
nsammcrC1.00:
nsammcrmode02v0061clothC1.c1:
nsammcrcalC1.a1:
nsammcrmonC1.00:
nsammcrmode01v0091clothC1.c1:
nsammcrmode03v0081clothC1.c1:
nsammcrmode04v0061clothC1.c1:
nsammcrpowC1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/04/1999 | 0430 | 07/21/1999 | 2300 |
Subject: | NSA/MMCR/C1 - Pulse controller failed due to water damage |
DataStreams: | nsammcrcalC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1, nsaarscl1clothC1.c1, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
Description: | Instrument had water damage that fried the pulse controller card. Images appear normal, but no clouds were detected during this period because no radar pulse was being emitted. Note from Karen Johnson: the ARSCL and MMCRMODE data fields may or may not be suspect, depending on whether ARSCL correctly identified the MMCR data as bad. |
Measurements: | nsammcrmomentsC1.a1:
nsammcrmonC1.a1:
nsammcrmode01v0091clothC1.c1:
nsammcrmode03v0081clothC1.c1:
nsammcrpowC1.a1:
nsammcrmode02v0061clothC1.c1:
nsammcrmode04v0061clothC1.c1:
nsaarscl1clothC1.c1:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/14/1998 | 1430 | 12/14/1998 | 1445 |
01/15/1999 | 0300 | 01/15/1999 | 0320 |
02/28/1999 | 0830 | 02/28/1999 | 0900 |
Subject: | NSA/MMCR/C1 - No radar pulse transmission |
DataStreams: | nsammcrcalC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1, nsaarscl1clothC1.c1, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
Description: | A fault in transmission occurred so no radar pulse was emitted and therefore no return signal, only noise, was received. Note from Karen Johnson: the ARSCL and MMCRMODE data fields may or may not be suspect, depending on whether ARSCL correctly identified the MMCR data as bad. |
Measurements: | nsammcrmomentsC1.a1:
nsammcrmonC1.a1:
nsammcrmode01v0091clothC1.c1:
nsammcrpowC1.a1:
nsammcrmode03v0081clothC1.c1:
nsammcrmode02v0061clothC1.c1:
nsammcrmode04v0061clothC1.c1:
nsaarscl1clothC1.c1:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/17/1999 | 0900 | 03/18/1999 | 2359 |
Subject: | NSA/MMCR/C1 - MUX failure |
DataStreams: | nsammcrcalC1.a1, nsammcrmonC1.a1, nsammcrpowC1.a1, nsaarscl1clothC1.c1, nsammcrmomentsC1.a1, nsammcrmode01v0091clothC1.c1, nsammcrmode02v0061clothC1.c1, nsammcrmode03v0081clothC1.c1, nsammcrmode04v0061clothC1.c1 |
Description: | Data values dropped to background clear sky (noise level). Other cloud instruments indicated it was cloudy. The MUX card was replaced and good data started flowing again at 00 GMT on 3/19. Note from Karen Johnson: the ARSCL and MMCRMODE data fields may or may not be suspect, depending on whether ARSCL correctly identified the MMCR data as bad. |
Measurements: | nsammcrmomentsC1.a1:
nsammcrmonC1.a1:
nsammcrmode01v0091clothC1.c1:
nsammcrmode03v0081clothC1.c1:
nsammcrpowC1.a1:
nsammcrmode02v0061clothC1.c1:
nsammcrmode04v0061clothC1.c1:
nsaarscl1clothC1.c1:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/02/2003 | 0000 | 07/02/2003 | 0330 |
07/02/2003 | 2100 | 07/02/2003 | 2359 |
07/06/2003 | 1700 | 07/06/2003 | 2359 |
Subject: | NSA/MMCR/C1 - Transmitter tube faults |
DataStreams: | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmomentsC1.00, nsammcrmomentsC1.a1 |
Description: | The transmitter tube experienced problems during these periods. |
Measurements: | nsammcrcalC1.00:
nsammcrmomentsC1.a1:
nsammcrmomentsC1.00:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
06/21/2003 | 0730 | 08/01/2003 | 2319 |
Subject: | NSA/MMCR/C1 - TWTA is inoperative |
DataStreams: | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrmonC1.a1 |
Description: | The TWTA failed and the MMCR is no longer transmitting or it may transmit irregularly. |
Measurements: | nsammcrcalC1.00:
nsammcrmonC1.a1:
nsammcrmonC1.00:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
11/21/2003 | 0800 | 11/21/2003 | 2230 |
Subject: | NSA/MMCR/C1 - Sudden Drop in Reflectivity |
DataStreams: | nsammcrcalC1.a1, nsammcrmonC1.a1 |
Description: | At 0800 on 11/21/03, the reflectivity dropped "unnaturally" (see the plot ). I checked the health messages and couldn't see any cause of this drop, i.e.tx power, t/r switches, power supplies, etc. I rebooted the system at 2230. |
Measurements: | nsammcrmonC1.a1:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/24/2003 | 2010 | 03/17/2004 | 2140 |
Subject: | NSA/MMCR/C1 - Reprocess: Incorrect Heights |
DataStreams: | nsammcrcalC1.a1 |
Description: | The OS/2 computer was replace on 10/24/2003 with a computer that was previously at SGP. The altitude in the cloud.par was not changed. The heights started at 423 meters instead of 112 meters. Only the heights in the nsammcrcalC1.a1 data stream were affected by this problem. |
Measurements: | nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/13/2004 | 1800 | 04/15/2004 | 0000 |
Subject: | NSA/MMCR/C1 - Upgrade in process |
DataStreams: | nsammcrcalC1.00, nsammcrcalC1.a1, nsammcrmonC1.00, nsammcrmonC1.a1, nsammcrpowC1.00, nsammcrmomentsC1.00, nsammcrmomentsC1.a1 |
Description: | The MMCR was undergoing a major upgrade during this period. At 0000 UTC on 20040415 the upgrade was complete. Old format NSA.C1 MMCR datastreams are not available after 20040413.1800. All MMCR data after 4/15 are available as nsammcrmomC1.b1 data. |
Measurements: | nsammcrcalC1.00:
nsammcrmomentsC1.a1:
nsammcrmonC1.a1:
nsammcrmomentsC1.00:
nsammcrpowC1.00:
nsammcrmonC1.00:
nsammcrcalC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/16/2002 | 0000 | 08/20/2002 | 0101 |
Subject: | NSA/MMCR/C1 - Intermittent missing data due to instrument collection problems |
DataStreams: | nsammcrcalC1.a1, nsammcrpowC1.a1, nsammcrmomentsC1.a1 |
Description: | The NSA MMCR suffered a disk crash resulting in intermittent missing data during the time period specified. |
Measurements: | nsammcrmomentsC1.a1:
nsammcrpowC1.a1:
nsammcrcalC1.a1:
|