SOFA banner

  Changes for SOFA Issue: 2005-09-01

  1. An error in the routine iau_SEPP (angle between two vectors) was corrected. For the unique case where two vectors are precise opposites, the previous version returned zero instead of pi.
  2. In the star-space-motion routines iau_PVSTAR and iau_STARPV, the DR2AS constant was truncated rather than rounded. The correction, a change by 1 in the 25th decimal digit, will have had no practical consequences.
  3. The routine iau_DAT was updated to include the UTC leap second at the end of 2005.
  4. A small efficiency improvement was made to iau_C2IXYS. The results should be unaffected.
  5. Improvements to text and layout.
@ IAU SOFA Center
Copyright © 2001-2017 International Astronomical Union
Last modified: 2017 April 23