Index: /trunk/MagicSoft/Mars/NEWS
===================================================================
--- /trunk/MagicSoft/Mars/NEWS	(revision 7127)
+++ /trunk/MagicSoft/Mars/NEWS	(revision 7128)
@@ -60,8 +60,24 @@
      MJPedestalY2.ExtractWinRight has been reduced from 4.0 to 2.0
 
-   - callisto: in  MCalibrationChargeCalc the limit fgPheErrLowerLimit
+   - callisto: in MCalibrationChargeCalc the limit fgPheErrLowerLimit
      has changed from 9.0 to 6.0. This is necessary to exclude two very
      ringing pixels in September which - when kept - destroy the image
      cleaning around them (Markus G.)
+
+   - callisto: (!) The Muon analysis of all data taken so far has
+     suggested that different extractors give slightly different
+     absolute results after calibration, due to there different
+     handling of the calibration- and cosmics pulse shape. Although
+     the over all calibration seems to be a bit to pesimistic (or 
+     the MC seems to be a little bit - 3-5% - too much attenuated).
+     There for correction factors have been introduced which correct
+     the calibration constants by
+         0.956937799 for Digital Filter (callisto.rc)
+     and
+         0.904159132 for Spline (callisto_Dec04Jan05.rc)
+     calibration. The main advantage is, that both data types can
+     be easily analysed together and compared to the same MC sample.
+     The factors are choosen such, that the reference is now a 
+     Monte Carlo sample calibrated with Digital Filter (callisto.rc)
 
    - star: fixed a bug which caused the first bin of the histograms