Index: trunk/FACT++/src/fitsCompressor.cc
===================================================================
--- trunk/FACT++/src/fitsCompressor.cc	(revision 16824)
+++ trunk/FACT++/src/fitsCompressor.cc	(revision 16826)
@@ -1125,7 +1125,15 @@
         setHeaderKey(HeaderEntry("PCOUNT", heapSize, "size of special data area"));
     }
+    else
+    {
+        setHeaderKey(HeaderEntry("NAXIS1", _rowWidth, "width of table in bytes"));
+        setHeaderKey(HeaderEntry("NAXIS2", 0, ""));
+        setHeaderKey(HeaderEntry("TFIELDS", _columns.size(), "number of fields in each row"));
+        setHeaderKey(HeaderEntry("PCOUNT", 0, "size of special data area"));
+    }
     writeHeader(true);
     ostringstream str;
     str << _checksum.val();
+
     setHeaderKey(HeaderEntry("DATASUM", str.str(), ""));
     addHeaderChecksum(_checksum);