DQRs for Session: 130790 User:dmfoperCompleted: 10-09-2010

Data Quality Reports for Session: 130790 User: dmfoper Completed: 10/09/2010

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D100402.3	GRW/WACR/M1 - Coherence Filter Contamination	grwwacrM1.b1

DQRID : D100402.3

Start Date	Start Time	End Date	End Time
06/09/2009	1600	04/02/2010	1200

Subject:	GRW/WACR/M1 - Coherence Filter Contamination
DataStreams:	grwwacrM1.b1
Description:	The coherence filter (software) that was added to the WACR under BCR-01500 was causing occasional contamination to WACR data. This was exhibited in the first 2000 m of range by streaking in the data over a period of time. It didn't occur often and when it did, it is quite obvious looking at the plots. On 4/2/2010 at 12:00 UTC, the coherence filter was modified to preclude working on signals with a SNR greater than 60 dB. The vendor thinks this will solve the problem.
Measurements:	grwwacrM1.b1: lat PowerHotLoad Temp_Computer_Enclosure Temp_Antenna_Bottom SignalToNoiseRatio heights PowerAmbientLoad Temp_LNA Temp_Modulator_Control Polarization PowerTransmitDriver Temp_Hot txpower Temp_ambient MMCR Spectral Width(SpectralWidth) Noise Temp_Outside Temp_Future base_time alt time time_offset wacr_status Temp_Chiller lon Cloud, reflectivity, at altitude(Reflectivity) Temp_Antenna_Top Temp_Chiller_Supply Temp_modulator Temp_EIKA MMCR Mean Doppler Velocity(MeanDopplerVelocity) Temp_Chiller_Return

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