DQR ID | Subject | Data Streams Affected |
---|---|---|
D070709.1 | NSA/MWRP/C1 - Reprocessed: 6-channel retrieval replaced by 5-channel retrieval | nsamwrpC1.b1 |
D080331.2 | NSA/MWRP/C1 - V-band Noise diode failure | nsamwrpC1.b1 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
02/19/2004 | 0214 | 06/02/2007 | 2359 |
Subject: | NSA/MWRP/C1 - Reprocessed: 6-channel retrieval replaced by 5-channel retrieval |
DataStreams: | nsamwrpC1.b1 |
Description: | Due to repeated failure of the V-band receiver and calibration problems, the 6-channel retrieval was retired and a new 5-channel retrieval which uses only the K-band channels was implemented. All data previously processed with the 6-channel retrieval have been reprocessed. Please note that the 7 channels (brightness temperatures) in the V-band range (51 to 60 GHz) should not be used. See D080331.1 and D080331.2. |
Measurements: | nsamwrpC1.b1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
03/15/2007 | 1900 | 07/13/2007 | 1900 |
Subject: | NSA/MWRP/C1 - V-band Noise diode failure |
DataStreams: | nsamwrpC1.b1 |
Description: | The LN2 calibration on 3/15 showed a large drift of the V-band calibration parameters. The radiometer was calibrated again in June and was sent out for repairs in July 2007. Between 3/15 and 7/13 2007 the V-band data are incorrect and should be disregarded. The failure affects the retrieved vertical profiles of temperature and humidity as well. Please note that the hardware failure affected the 7 V-band channels only (51-60 GHz). Channels in the frequency range between 20 and 30 GHz are not affected. Integrated liquid water (LWP) and water vapor (PWV) are not affected since they use K-band channels only. |
Measurements: | nsamwrpC1.b1:
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