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Changeset 1983

Timestamp:

04/23/03 11:59:39 (22 years ago)

Author:

moralejo

Message:

*** empty log message ***

Location:

trunk/MagicSoft

Files:

-              r1982
+              r1983
                                                  -*-*- END OF LINE -*-*-
+/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.
 /04/22: Abelardo Moralejo

-              r1717
+              r1983
 // 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);

-              r1868
+              r1983
   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
 …
   // Telescope orientation:
   Float_t       fTelescopePhi;    // [rad]
+  Float_t       fTelescopePhi;    // [rad] (see class description)
   Float_t       fTelescopeTheta;  // [rad]

-              r1591
+              r1983
 //
 //  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.
 //
 ////////////////////////////////////////////////////////////////////////////

-              r1632
+              r1983
   //  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
 …
   //  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;

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