DQR ID | Subject | Data Streams Affected |
---|---|---|
D021211.10 | NSA/GNDRAD/C1 - Unreasonable/missing PIR data due to maintenance | nsagndrad60sC1.a1 |
D021211.11 | NSA/GNDRAD/C1 - Noisy PIR Data | nsagndrad60sC1.a1 |
D021211.13 | NSA/GNDRAD/C1 - PIR1 Calibration problems resulted in small error | nsagndrad60sC1.a1 |
D021211.8 | NSA/GNDRAD/C1 - PIR offline | nsagndrad60sC1.a1 |
D021211.9 | NSA/GNDRAD/C1 - Instrument maintenance | nsagndrad60sC1.a1 |
D021212.5 | NSA/GNDRAD/C1 - Bad PSP calibrations applied | nsagndrad60sC1.a1 |
D990924.1 | NSA/GNDRAD/C1 - IRT insufficiently heated | nsagndrad60sC1.a1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/19/1999 | 1830 | 01/20/1999 | 2359 |
Subject: | NSA/GNDRAD/C1 - Unreasonable/missing PIR data due to maintenance |
DataStreams: | nsagndrad60sC1.a1 |
Description: | During this period, there are data gaps and the data that were collected are unreasonable. Instrument maintenance was being performed |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
09/01/1998 | 0000 | 02/28/1999 | 2359 |
Subject: | NSA/GNDRAD/C1 - Noisy PIR Data |
DataStreams: | nsagndrad60sC1.a1 |
Description: | During the period referenced, the ground PIR was noisy in comparison to the sky PIR data. At the end of November, the noise increased to roughly 10 W/m2 from peak to peak. After 12/23/98, the noise decreased in amplitude but still had noisy patterns. On 01/17-18/99, there was an increase again in the noise level (4 GMT 01/17 - 5 GMT 01/18). During this period the gndrad IRT data also exhibited noise patterns (the IRT was not operational). In February, the instrument exhibited large noise variations again. On 02/16, a wiring problem was corrected and the noise dropped back to 1-5 W/m2. However, the noise levels began to increase again. |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/08/1998 | 2051 | 12/15/1998 | 1200 |
Subject: | NSA/GNDRAD/C1 - PIR1 Calibration problems resulted in small error |
DataStreams: | nsagndrad60sC1.a1 |
Description: | The dome correction coefficients were not properly reset in calibration file until the early morning of 12/15. These errors probably account for less than 4% in error. |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/16/1999 | 0030 | 02/16/1999 | 2000 |
02/17/1999 | 0000 | 02/17/1999 | 0100 |
Subject: | NSA/GNDRAD/C1 - PIR offline |
DataStreams: | nsagndrad60sC1.a1 |
Description: | The PIR was taken off line during this period; data recorded during this period are garbage. |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/08/1998 | 2030 | 12/08/1998 | 2050 |
Subject: | NSA/GNDRAD/C1 - Instrument maintenance |
DataStreams: | nsagndrad60sC1.a1 |
Description: | Instrument replaced. Data affected by the work done during this time. |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/21/1999 | 0000 | 02/09/1999 | 2359 |
Subject: | NSA/GNDRAD/C1 - Bad PSP calibrations applied |
DataStreams: | nsagndrad60sC1.a1 |
Description: | The ground radiation data are bad during this period due to erroneous calibration factors in the logger configuration file. |
Measurements: | nsagndrad60sC1.a1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
04/06/1998 | 2156 | 12/22/2000 | 2020 |
Subject: | NSA/GNDRAD/C1 - IRT insufficiently heated |
DataStreams: | nsagndrad60sC1.a1 |
Description: | IRT had insufficient heating to maintain an internal reference temperature above 0 degrees C. Measurements of sky temperature were over-estimated when instrument was below freezing. |
Measurements: | nsagndrad60sC1.a1:
|