IDL AACGM DLM is a Dynamic Link Module (DLM) for the Interactive Data Language (IDL) by Research Systems, Inc. The purpose of this library is to provide easy access to the AACGM library by R. J. Barnes, which is based on algorithms by K. Baker and S. Wing. I do not claim any rights to those routines. My only intellectual assets are in the interface itself. The interface allows calling of the AACGM functions from the IDL command line without any knowledge of the C language. All commands behave like native IDL procedures and are faster than the native IDL implementation of the library.
The source for the original AACGM library has been abandoned. While this DLM still runs, the required coefficients have not been updated since the year 2010. For the latest AACGM v2 library see here.