2 files changed, 4 insertions, 6 deletions
diff --git a/tksao/frame/base.C b/tksao/frame/base.C
index ed69dd2..858d7f0 100644
--- a/tksao/frame/base.C
+++ b/tksao/frame/base.C
@@ -650,11 +650,11 @@ Matrix Base::calcAlignWCS(FitsImage* fits1, FitsImage* fits2,
   astBegin; // start memory management
 
   fits1->setWCSSystem(sys1);
-  AstFrameSet* wcs1 = (AstFrameSet*)astCopy(fits1->ast_);
+  AstFrameSet* wcs1 = fits1->wcsCopy();
   astInvert(wcs1);
 
   fits2->setWCSSystem(sys2);
-  AstFrameSet* wcs2 = (AstFrameSet*)astCopy(fits2->ast_);
+  AstFrameSet* wcs2 = fits2->wcsCopy();
   astInvert(wcs2);
 
   AstFrameSet* cvt = (AstFrameSet*)astConvert(wcs1, wcs2, "");
diff --git a/tksao/frame/fitsimage.C b/tksao/frame/fitsimage.C
index 0080272..6ba97ad 100644
--- a/tksao/frame/fitsimage.C
+++ b/tksao/frame/fitsimage.C
@@ -1671,11 +1671,11 @@ void FitsImage::match(const char* xxname1, const char* yyname1,
   if (sky1 != sky2) {
     setWCSSystem(sys1);
     setWCSSkyFrame(sky1);
-    AstFrameSet* wcs1 = (AstFrameSet*)astCopy(ast_);
+    AstFrameSet* wcs1 = wcsCopy();
 
     setWCSSystem(sys2);
     setWCSSkyFrame(sky2);
-    AstFrameSet* wcs2 = (AstFrameSet*)astCopy(ast_);
+    AstFrameSet* wcs2 = wcsCopy();
 
     AstFrameSet* cvt = (AstFrameSet*)astConvert(wcs1, wcs2, "SKY");
     if (cvt != AST__NULL) {
@@ -3682,8 +3682,6 @@ void FitsImage::astInit(FitsHead* hd, FitsHead* prim)
   case 4:
     break;
   }
-
-  setWCSSkyFrame(Coord::FK5);
 }
 
 void FitsImage::wcsInit()