Changeset 9523 for trunk/MagicSoft/Cosy/catalog/SlaStars.cc

Timestamp:

12/01/09 13:03:41 (15 years ago)

Author:

tbretz

Message:

*** empty log message ***

File:

• trunk/MagicSoft/Cosy/catalog/SlaStars.cc (modified) (4 diffs)

trunk/MagicSoft/Cosy/catalog/SlaStars.cc

@@ -12 +12 @@
 }
 
-SlaStars::~SlaStars()
-{
-}
-
 void SlaStars::Set(const AltAz &altaz)
 {
@@ -42 +38 @@
     Slalib::SetMjd(mjd);
 
+    fTt = GetMjd() + slaDtt(GetMjd())/60./60./24.;
+
     //
     // ----- calculate star independent parameters ----------
@@ -47 +45 @@
 
     // prepare calculation: Mean Place to geocentric apperent
-    slaMappa(2000.0, GetMjd(), fAmprms);   // Epoche, TDB
+    // (UTC would also do, except for the moon?)
+    slaMappa(2000.0, fTt, fAmprms);        // Epoche, TDB
 
     // prepare: Apperent to observed place
@@ -54 +53 @@
              0, 0,                         // polar motion x, y-coordinate (radians)
              // 273.155, 1013.25, 0.5,     // temp, pressure, humidity
-             273.155+10, 780.0, 0.25,     // temp, pressure, humidity
+             273.155+10, 780.0, 0.25,      // temp, pressure, humidity
              // 0.2, 0.0065,               // wavelength, tropo lapse rate
              0.55, 0.0065,                 // wavelength, tropo lapse rate
              fAoprms);
+
+    // Delta UT should be less than 0.9s which is its definition
+    // so we can fairly assume it to be neglegible
 }