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Changes between Version 1 and Version 2 of TestCaseData/2009-09-23_bandpass_variations

-                      v1
+                      v2
 == Description ==
+Explain the issue here (or point to the tickets, below)
+EmilLenc did some exploration of how much the CABB bandpass changes during an observing session (12h).
+=== Data Set(s) ===
+ * 2009-06-16_1842.C911
+ * 2009-06-16_2210.C911
+ * 2009-06-17_0139.C911
+ * 2009-06-17_0507.C911
+=== Data Set(s) ===
+Give the relevant ATCA correlator filenames so we can get them from the [http://atoa.atnf.csiro.au/ archive]. There's no need to attach the data files themselves.
+Source of interest: 0537-441
+Frequency: 6 & 3 cm
+If it's not ATCA data, give the name of the file as it would appear in the online archive for that instrument.
+We observed
+ - ripple across the amplitude spectrum, the slope of the spectrum changed with time.
+ - phase across the bandpass is roughly linear, but slope changed with time (+/- 8deg over 12h).
+ - the majority of the (amplitude) variation was due to poor calibration - the mean amplitude jumped quite a bit from one scan to the next
+The source is actually resolved so the bandpass variations are probably mostly the result of source structure.
+This data set was mainly of use to build the {{{plotvis}}} application.
 == Tickets ==
+If there are trac tickets that were opened for this issue, please list them here.
+ * {{{ticket:nn}}} - short description
+ * ticket:90 is relevant but Emil did not use the updated code in his tests
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