Data Quality Reports for Session: 110293 User: maria Completed: 02/06/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D070710.3NSA/GVR/C1 - Temperature sensor wire brokennsagvrC1.a0, nsagvrC1.b1
D070713.1NSA/GVR/C1 - Incorrect auxiliary measurementsnsagvrC1.a0, nsagvrC1.b1


DQRID : D070710.3
Start DateStart TimeEnd DateEnd Time
06/30/2007190007/13/20072200
Subject:
NSA/GVR/C1 - Temperature sensor wire broken
DataStreams:nsagvrC1.a0, nsagvrC1.b1
Description:
The temp_ext temperatures were occasionally spiking to very large values. Comparisons with 
the co-located 2m METTWR suggest the GVR exterior temperatures were not reporting 
correctly.  Site ops found the temperature sensor had a broken wire and repaired it 7/13.
Measurements:nsagvrC1.b1:
  • Temperature of external sensor(temp_ext)
nsagvrC1.a0:
  • Temperature of external sensor(temp_ext)

Back To Table of Contents

DQRID : D070713.1
Start DateStart TimeEnd DateEnd Time
06/16/2007170006/19/20071700
Subject:
NSA/GVR/C1 - Incorrect auxiliary measurements
DataStreams:nsagvrC1.a0, nsagvrC1.b1
Description:
Between 6/16 and 6/19 there was a software problem and the auxiliary measurements all were 
reading constant values. The brightness temperature measurements do not appear to be 
affected.
One of the incorrect measurements that may affect the use of the data is the surface 
temperature. This measurement should be disregarded. 

Measurements from a different instrument (such as the MWR) can be used to replace the GVR 
readings.
Measurements:nsagvrC1.b1:
  • Physical temperature of component plate(temp_component_plate)
  • Temperature of external sensor(temp_ext)
  • Physical temperature of thermoelectric cooling plate(temp_thermoelectric_cooling_plate)
  • Temperature of the hot absorber at the tip(temp_hot1)
  • Physical temperature of noise diode(temp_noise_diode)
  • Temperature of the warm absorber(temp_warm)
  • Physical temperature of antenna feed horn(temp_antenna_feed_horn)
  • Temperature of the hot absorber at the center(temp_hot2)
nsagvrC1.a0:
  • 183.3 +/- 14 GHz warm load signal(warm14)
  • Temperature of the hot absorber at the center(temp_hot2)
  • 183.3 +/- 3 GHz hot load signal(hot3)
  • Temperature of the warm absorber(temp_warm)
  • Physical temperature of antenna feed horn(temp_antenna_feed_horn)
  • Physical temperature of noise diode(temp_noise_diode)
  • 183.3 +/- 1 GHz warm load signal(warm1)
  • Temperature of the hot absorber at the tip(temp_hot1)
  • 183.3 +/- 7 GHz hot load signal(hot7)
  • Temperature of external sensor(temp_ext)
  • 183.3 +/- 7 GHz warm load signal(warm7)
  • 183.3 +/- 14 GHz hot load signal(hot14)
  • Physical temperature of thermoelectric cooling plate(temp_thermoelectric_cooling_plate)
  • 183.3 +/- 1 GHz hot load signal(hot1)
  • 183.3 +/- 3 GHz warm load signal(warm3)
  • Physical temperature of component plate(temp_component_plate)

Back To Table of Contents


END OF DATA