DQR ID | Subject | Data Streams Affected |
---|---|---|
D060420.5 | NIM/MWRP/M1 - IRT Sensor Calibration | nimmwrpM1.00, nimmwrpM1.b1, nimmwrprawM1.00 |
D060602.2 | NIM/MWRP/M1 - Reprocess: IRT configuration setting error | nimmwrpM1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/15/2006 | 0000 | 06/03/2006 | 0000 |
Subject: | NIM/MWRP/M1 - IRT Sensor Calibration |
DataStreams: | nimmwrpM1.00, nimmwrpM1.b1, nimmwrprawM1.00 |
Description: | Discrepancies between the MWRP and Skyrad IRT were observed in January. The MWRP IRT readings were constantly higher than those of the skyrad IRT. Some changes were introduced to the MWRP IRT to address the problem (see DQR D060602.2). On May 3, the IRT mirror was replaced. After the change in the mirror, the MWRP IRT readings became about 5-8 C lower. On June 3 the agreement between MWRP and Skyrad IRT became satisfactory (2-5 degree C difference). It is hard to numerically quantify the difference in the IRT readings caused by the change in the mirror. We can only warn the user that between January 1 and June 3 the MWRP readings are 8 to 15 degree higher than the skyrad IRT. |
Measurements: | nimmwrprawM1.00:
nimmwrpM1.b1:
nimmwrpM1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/15/2006 | 0000 | 04/21/2006 | 0000 |
Subject: | NIM/MWRP/M1 - Reprocess: IRT configuration setting error |
DataStreams: | nimmwrpM1.b1 |
Description: | The infrared thermometer settings (IRT) were not configured as specified by the manufacturer. The analog output was set to a range of -60 to +50 C (0-10V) instead of -50 to +50 C (0-10V). The settings were changed on April 20. The IR temperatures should be slightly smaller than reported. The following formula can be used to convert the wrong readings to the new: T_new = -60 + 1.1(T_old+50) where all temperatures are in degree C. For example, if T_old = 30 C, T_new = 28 C. |
Measurements: | nimmwrpM1.b1:
|