xband cal values measured 28jun12

06aug12

Links to PLOTS:
  hcorcal:
     Fits to the Average CalDeflection/Tsys and Hcorcal in Kelvins  (.ps)  (.pdf): .
        
  othercals
       OtherCals/Hcorcal and the fits (.ps)  (.pdf):
       Over plotting all of the cals (in deg K) (.ps) (.pdf).
  diagnostics:
       Over plotting the new and old cal values (.ps) (.pdf).
       Comparing Tsys measurements using 28jun12 and mar04  cals  (.ps) (.pdf):
        

Links to SECTIONS:
Why the cals were remeasured.
Measuring the high correlated cal using blank sky and absorber
Measuring the other cals on blank sky relative to the high correlated cal.
Diagnostics


Why the cals were remeasured.

    The xb cal values were measured on 28jun12 (absorber) and  01jul12 (on sky). The previous measurement was on done at the receiver test range on mar04. Some reasons why the cals were remeasured were:


Measuring the high correlated cal using sky and absorber: (top)

    The high correlated  cal value (diode 1 going to polA and polB) for xband wide was measured on 28jun12  using  the  mock sky/absorber technique.
 These observations used the mock  spectrometer with the hardware winking cal.. 

    The temperatures used in the computation were:
 
Tabsorber 303.7K (87.1F avg temp sensor)
Tsky 8K
Treceiver from test shack mar04
Tscattered 15 K

    The recording and processing steps were:

    The results of the reduction are:

 
processing: x101/lb/cals/jun12/hcorcal/xbinpfit.pro,xbcmp.pro,xbplot.pro


Measuring the other cals using sky and the high correlated cal (top)

    The high correlated cal was measured (see above) using sky and absorber as the cold and  hot load . The other cals were then measured relative to the high correlated cal on 01jul12 (the times were right after the hcorcal measurements). The setup was the same as the hcorcal (see above) except  that each integration only lasted for 10 seconds (on sky). The following cal sequence was run:     The 7900 to 10100 span was measured in 3 sections (as above). The 25 hz hardware winking cal was used. 10 scans of 10 seconds each covered all the combinations..
the recording and processing steps were:

     
  The results of the reduction are:


Diagnostics:

processing: x101/xb/cals/jun12/othercals/xbinpfit.pro,xbcmp.pro,xbplot.pro


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