CelestialTools.exe is a free PC program that solves many problems in cel nav and other areas. It was written by the late Stan Klein, navigator, teacher, and friend. It was written for USPS students and instructors, but Stan decided to share it with the public several years ago and ask us to host it, which we were happy to do. It is a wonderful tool for learning cel nav, especially with regard to one unique function it includes called "SR Methods and Fix." Download celestial tools and its manual.
Below is the graphic menu to the program (Windows only). The function at hand now is far left of the middle row.
|Figure 1 Splash screen index. (Click any image for a better view.)
|Figure 2. An NAO form with wrong data.
|Figure 3 The right answer by direct computation.
|Figure 4. The NAO solution (called here NASR).
|Figure 5. NAO Table selection showing student's wrong entry.
|Figure 6 Right data from NAO tables.
|Figure 7. Pub 229 solution details.
|Figure 8. Pub 249 solution details. In our cel nav course we interpolate the d-corr in 249, so we may differ by a tenth or two on Hc. He follows the official rules and rounds the declination.