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Explanation of ngc3031 Files:
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Notes:

* ngc3031_red.txt
  
  --> Reduction steps used in version1 of raster processing

* ngc3031_red_v2.txt
  
  --> Reduction steps used in version2 of raster processing

* flagging notes
  
  --> Notes on flagging of raw data

* REDUCE_SCIENCE_GRADIENT*
  
  --> Reduction script which is run to produce 0th, 1st and 2nd moment map
      s at seven different clip levels (2.0, 2.5, 3.0, 3.5, 4.0, 4.5, and 5.0 sigma).
      Please note that only Step 3 of the script was executed.

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Data files:

* ngc3031_sincsinc_20kms_v1-0.sdf, ngc3031_sincsinc_v1-0.sdf
  --> Reduced cube binned to 20kms, and full resolution respectively (sincsinc 
      spread, version 1.0).


* ngc3031_sincsinc_totint20_v2-0.sdf, ngc3031_sincsinc_totint25_v2-0.sdf, 
  ngc3031_sincsinc_totint30_v2-0.sdf
  --> Total integration maps with clip levels of 2.0, 2.5 and 3.0 sigma respectively.


* ngc3031_sincsinc_totint20_noise_v2-0.sdf, ngc3031_sincsinc_totint25_noise_v2-0.sdf
  ngc3031_sincsinc_totint30_noise_v2-0.sdf
  --> Noise maps with clip levels of 2.0 , 2.5 and 3.0 sigma respectively.


* ngc3031_sincsinc_intvel20_v2-0.sdf, ngc3031_sincsinc_intvel25_v2-0.sdf
  ngc3031_sincsinc_intvel30_v2-0.sdf
  --> Integrated Velocity maps with clip levels of 2.0, 2.5 and 3.0 sigma respectively.


* ngc3031_sincsinc_dispvel20_v2-0.sdf, ngc3031_sincsinc_dispvel25_v2-0.sdf
  ngc3031_sincsinc_dispvel30_v2-0.sdf
  --> Dispersive Velocity maps with clip levels of 2.0, 2.5 and 3.0 sigma respectively.


* .fits version of each file included

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Plots:

* ngc3031_sincsinc_totint20.eps, ngc3031_sincsinc_totint30.eps
  
  --> Contoured total integration maps with clip levels of 2.0 and 3.0 sigma res
      pectively. The first contour level is approximately one sigma.


* ngc3031_sincsinc_totint20_overlaid.eps, ngc3031_sincsinc_totint30_overlaid.eps

  --> Contours from the same total integration maps overlaid on a DSS optical im
      age. The first contour level is approximately one sigma.

* .pdfs version of each plot included


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