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List:       kde-commits
Subject:    [kstars] kstars/skyobjects: Declare step2 as step^2/2. This way
From:       Khudyakov Alexey <alexey.skladnoy () gmail ! com>
Date:       2011-07-23 20:07:53
Message-ID: 20110723200753.1A12DA60BB () git ! kde ! org
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Git commit d42673200808dbd98b6df80021bd5ba27fa0d84e by Khudyakov Alexey.
Committed on 23/07/2011 at 15:39.
Pushed by khudyakov into branch 'master'.

Declare step2 as step^2/2. This way it's not a magic number

M  +1    -1    kstars/skyobjects/satellite.cpp

http://commits.kde.org/kstars/d42673200808dbd98b6df80021bd5ba27fa0d84e

diff --git a/kstars/skyobjects/satellite.cpp b/kstars/skyobjects/satellite.cpp
index ce99d1a..72250ff 100644
--- a/kstars/skyobjects/satellite.cpp
+++ b/kstars/skyobjects/satellite.cpp
@@ -724,7 +724,7 @@ int Satellite::sgp4( double tsince )
         const double g54   = 4.4108898;
         const double rptim = 4.37526908801129966e-3; // this equates to 7.29211514668855e-5 rad/sec
         const double step  =    720.0;
-        const double step2 = 259200.0;
+        const double step2 = step * step / 2;
 
         // Calculate deep space resonance effects
         dndt   = 0.0;


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