Versions Compared


  • This line was added.
  • This line was removed.
  • Formatting was changed.


  1. Review the GMAT User Guide on the subject.

  2. Download the updated US Naval Observatory leap second file:

  3. Overwrite GMAT's old file with this new copy:

    Code Block
  4. Download the updated NAIF leap second file:


  5. Place this file in your GMAT data folder:

    Code Block
  6. Modify your GMAT startup file (<GMAT>\bin\gmat_startup_file.txtto point to the new NAIF file:

    Code Block
    LSK_FILE               = TIME_PATH/naif0011.tls
  7. Restart GMAT.


That's it! If you have any issues, post to try any of our help resources: