The Debris Assessment Software (DAS) utility will be periodically updated by NASA to reflect the latest understanding of the man-made debris environment in Earth orbit. Users are encouraged to check this page regularly for news and updates, and to report problems with the DAS software to Nicholas L. Johnson.

DAS 2.0 makes several improvements in DAS without changing its overall functionality. DAS will run on Microsoft Windows 2000/XP/Vista.

Debris Assessment Software (Version 2.0.1) Downloads   DAS 2.0.1 Software - Compressed Windows installer (15 MB) - 05 February 2008         (Release Notes - Brief description of the updates.)     Click here to subscribe to DAS version release email notification.   User's Guide   DAS 2.0 User's Guide - Also included in the installer (Adobe PDF 1.1 MB)   Installation Instructions   Download the DAS 2.0.1 Software Run the software to install DAS (this requires administrative privileges) Create a shortcut or use the Windows Start menu to run DAS: Start->Programs->DAS 2.0->DAS 2.0