Changes between Version 5 and Version 6 of Durham_MDS_Testing4

Timestamp:

Dec 1, 2009, 5:49:33 AM (17 years ago)

Author:

shaun.cole@…

Comment:

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Durham_MDS_Testing4

@@ -14 +14 @@
 
 However - above we show a direct IPP aperture magnitude (AP_MAG) comparison between 30204 and 29871. This is gratifyingly linear, from which we deduce there must be some problem in fitting the PSFs.
+
+=== Astrometry ===
+
+[[Image(xoffset_30204_30204NM.jpg,400px)]][[Image(yoffset_30204_30204NM.jpg,400px)]]
+
+Show above are the x and y position offsets between two reductions of the ''same stack'' (30204). One is the from the standard cmf file provided, the other is from our own run of psphot on 30204 (from code taken from the SVN on Nov 25th). The rms is about 0.4 pixels, so as both methods used identical datasets this is a measure of the reproducability of psphot.