==== Code ==== This document describes the code. NE2001 ++++++ Overall, the current implementation is a nearly direct port of the FORTRAN code created and kindly provide by Cordes & Lazio (`astro-ph/3101598 `_) It is important to appreciate, however, that the code is not fully consistent with the detailed description provided in the publication. These are the key differences: * The electron density near the Galactic Center is a constant value * In NE2001, the thin disk assumes a height of 1.8kpc instead of the A2 parameter * In NE2001, the Galactic parameters are substantially different than those in the posting In addition, we have made a few modifications of our own: * In the original NE2001 code for clumps, q2 <= 5 is used instead of q <= 5.