Index: trunk/MagicSoft/Mars/Changelog
===================================================================
--- trunk/MagicSoft/Mars/Changelog	(revision 1982)
+++ trunk/MagicSoft/Mars/Changelog	(revision 1983)
@@ -1,3 +1,9 @@
                                                  -*-*- END OF LINE -*-*-
+
+ 2003/04/23: Abelardo Moralejo
+
+    * mmc/MMcRunHeader.[hxx,cxx], mmc/MMCEvt.[hxx,cxx]
+      - added comment in class description about the definition of
+	the azimuth angle phi in the MC classes.
 
  2003/04/22: Abelardo Moralejo
Index: trunk/MagicSoft/include-Classes/MMcFormat/MMcEvt.cxx
===================================================================
--- trunk/MagicSoft/include-Classes/MMcFormat/MMcEvt.cxx	(revision 1982)
+++ trunk/MagicSoft/include-Classes/MMcFormat/MMcEvt.cxx	(revision 1983)
@@ -10,7 +10,15 @@
 // with which the events have been generated
 // This information exists for each event.
- 
-
-
+//
+// Note: All the azimuth Phi angles in this and other MC classes follow
+// the convention in the Corsika program (see Corsika manual). There, phi
+// is the azimuth of the momentum vector of particles, and is measured
+// from the north direction, anticlockwise (i.e, west is phi=90 degrees).
+// When it refers to the telescope orientation, it is the azimuth of a 
+// vector along the telescope axis, going from the camera to the mirror. 
+// So, fTelescopeTheta=90, fTelescopePhi = 0 means the telescope is 
+// pointing horizontally towards South. For an explanation, see also 
+// TDAS 02-11. 
+//
 ClassImp(MMcEvt);
 
Index: trunk/MagicSoft/include-Classes/MMcFormat/MMcEvt.hxx
===================================================================
--- trunk/MagicSoft/include-Classes/MMcFormat/MMcEvt.hxx	(revision 1982)
+++ trunk/MagicSoft/include-Classes/MMcFormat/MMcEvt.hxx	(revision 1983)
@@ -17,5 +17,5 @@
 
   Float_t fTheta;           // [rad] Theta angle of event 
-  Float_t fPhi;             // [rad] Phi angle of event 
+  Float_t fPhi;             // [rad] Phi angle of event (see class description)
 
   Float_t fCoreD;           // [cm] Core d pos
@@ -27,5 +27,5 @@
 
   // Telescope orientation: 
-  Float_t	fTelescopePhi;    // [rad]
+  Float_t	fTelescopePhi;    // [rad] (see class description)
   Float_t	fTelescopeTheta;  // [rad]
 
Index: trunk/MagicSoft/include-Classes/MMcFormat/MMcRunHeader.cxx
===================================================================
--- trunk/MagicSoft/include-Classes/MMcFormat/MMcRunHeader.cxx	(revision 1982)
+++ trunk/MagicSoft/include-Classes/MMcFormat/MMcRunHeader.cxx	(revision 1983)
@@ -54,4 +54,14 @@
 //
 //  Byte_t fOpticLinksNoise;   Flag to state if the optic noise is simualted or not
+//
+//
+// Note: All the azimuth Phi angles in this and other MC classes follow
+// the convention in the Corsika program (see Corsika manual). There, phi
+// is the azimuth of the momentum vector of particles, and is measured
+// from the north direction, anticlockwise (i.e, west is phi=90 degrees).
+// When it refers to the telescope orientation, it is the azimuth of a 
+// vector along the telescope axis, going from the camera to the mirror. 
+// So, fTelesTheta=90, fTelesPhi = 0 means the telescope is pointing 
+// horizontally towards South. For an explanation, see also TDAS 02-11. 
 //
 ////////////////////////////////////////////////////////////////////////////
Index: trunk/MagicSoft/include-Classes/MMcFormat/MMcRunHeader.hxx
===================================================================
--- trunk/MagicSoft/include-Classes/MMcFormat/MMcRunHeader.hxx	(revision 1982)
+++ trunk/MagicSoft/include-Classes/MMcFormat/MMcRunHeader.hxx	(revision 1983)
@@ -46,8 +46,8 @@
   
   //  Telescope axis position (zenith and azimutal angle)
-  Float_t fTelesTheta;  // >180 (200) means that telescope is always pointing the 
-                        // shower. Otherwise it is Theta where Telescope is pointing.
-  Float_t fTelesPhi;    // > 360 (400) means that telescope is always pointing the 
-                        //  shower. Otherwise it is Phi where Telescope is pointing.
+  Float_t fTelesTheta;  // >180 (200) means that telescope is always pointing the shower. 
+                        // Otherwise it is Theta where Telescope is pointing.
+  Float_t fTelesPhi;    // See class description. > 360 (400) means that telescope is always pointing the shower.
+                        // Otherwise it is Phi where Telescope is pointing.
 
   //  Angular distance from the source position to the camera center
@@ -56,8 +56,8 @@
   
   //  Angular range used in the Corsika showers generation (degrees)
-  Float_t fShowerThetaMax;
-  Float_t fShowerThetaMin;
-  Float_t fShowerPhiMax;
-  Float_t fShowerPhiMin;
+  Float_t fShowerThetaMax; // [deg]
+  Float_t fShowerThetaMin; // [deg]
+  Float_t fShowerPhiMax; // [deg] See note in class description.
+  Float_t fShowerPhiMin; // [deg] See note in class description.
 
   UShort_t fCorsikaVersion;