Changes between Version 13 and Version 14 of Durham_MDS_Testing4

Timestamp:

Dec 1, 2009, 7:57:21 AM (17 years ago)

Author:

shaun.cole@…

Comment:

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Durham_MDS_Testing4

@@ -39 +39 @@
 This first figure shows the magnitude against an error estimate based on the variation of the data in the annulus, the sky noise. Each pixel in the aperture is assumed to have at least the noise due to the sky, so these represent a lower limit on the true error in the aperture. 
 
-[[Image(ccdpack-v-ipp-gsky.png,400px)]]
+[[Image(ccdpack-v-ipp-gsky.png,600px)]]
 
 To check IPP stacking we also show the results of stacking the same warps using an independent software package (CCDPACK). The amount of clipping used in CCDPACK was greater, which explains the higher noise.
@@ -45 +45 @@
 Repeating the same apertures, but using the variances generated by the IPP analysis gives the following plot. Reassuringly what should be better estimates of the error lie above the sky noise estimate. 
 
-[[Image(gsky-ippvar.png,400px)]]
+[[Image(gsky-ippvar.png,600px)]]