Contents

SofaJpl 2 for .NET Framework
IAU SOFA and JPL planetary ephemeris routines, plus a set of classes to support fundamental astronomy programming. Developed and tested under Windows 8.1 and .NET Framework 4.5. Many improvements over the previous SofaJpl release.
Air Navigation Sextants
AFM 51-40 (U.S. Air Force manual "Air Navigation") section pertaining to bubble sextants, from the 1955 and 1960 editions. This is a single 990 k page, of which 95% is graphics. With a slow connection it may be best to turn graphics off and download individual pictures as needed.
Running Fix vs. Estimated Fix
With a simple Monte Carlo simulation program I compare two kinds of navigational fix.
SofaJpl for .NET Framework
The IAU SOFA libraries, JPL planetary ephemeris routines, and a set of classes to support positional astronomy programming, packaged in a set of language-independent Windows .NET Framework assemblies. Does not work under Windows 8 and later. Replaced by SofaJpl 2 (see above).
Lunar4 Lunar Distance Navigation Program
A Windows program to determine Greenwich time by the celestial navigation method of lunar distances. It also serves as a geocentric almanac and a sight reduction program.
Tinyac: A Tiny Almanac Program
A small Windows program for computing the positions of the Sun, Moon, planets, and stars. It will duplicate the precise planetary and stellar reduction examples in The Astronomical Almanac to full accuracy. Does not work under Windows 8. Rewrite pending.
Sofajpl Win32
Windows astronomy DLL containing the IAU SOFA library of positional astronomy routines, and JPL planetary ephemeris (DE405/LE405 etc.) routines. Obsolete. Replaced by the .NET Framework version.
Email Me
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(last modified 2018-08-23)