DQRID : D060718.3
Start DateStart TimeEnd DateEnd Time
06/01/2006000008/21/20061100
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Subject:
SGP/MWR/B5 - Mixer temp unstable
DataStreams:sgpmwrtipB5.a1, sgpmwrlosB5.b1
Description:
The radiometer mixer temperature was unstable during this time interval. The instability 
will slightly affect calibration.  On 8/21, the instrument was sent to the vendor for 
repair.

June and July data are suspect, the calibration may be slightly incorrect. August data 
should not be used.
Suggestions: 
Measurements:sgpmwrtipB5.a1:
  • Correlation coefficients for tip curve at 31.4 GHz(r31)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • (tknd)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Noise injection temp at 23.8 GHz derived from this tip(tnd23I)
  • Total liquid water along zenith path using tip-derived brightness temperatures(liqtip)
  • 31.8 GHz sky brightness temperature derived from tip curve(tbskytip31)
  • 31.4 GHz sky signal(tipsky31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • 23.8 GHz goodness-of-fit coefficient(r23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 31.4 GHz derived from this tip(tnd31I)
  • 23.8 GHz sky signal(tipsky23)
  • Total water vapor along zenith path using tip-derived brightness temperatures(vaptip)
  • 23.8 GHz sky brightness temperature derived from tip curve(tbskytip23)
more
sgpmwrlosB5.b1:
  • Mean 23.8 GHz sky brightness temperature(tbsky23)
  • Temperature correction coefficient at 31.4 GHz(tc31)
  • Noise injection temp at nominal temperature at 31.4 GHz(tnd_nom31)
  • Noise injection temp at 31.4 GHz adjusted to tkbb(tnd31)
  • Noise injection temp at nominal temperature at 23.8 GHz(tnd_nom23)
  • Mixer kinetic (physical) temperature(tkxc)
  • Total water vapor along LOS path(vap)
  • 23.8 GHz sky signal(sky23)
  • Mean 31.4 GHz sky brightness temperature(tbsky31)
  • Temperature correction coefficient at 23.8 GHz(tc23)
  • (tknd)
  • Averaged total liquid water along LOS path(liq)
  • Noise injection temp at 23.8 GHz adjusted to tkbb(tnd23)
  • 31.4 GHz sky signal(sky31)
more

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