The Debris & ICE Mapping Analysis Tool (DIMAT) system is a Web-based system that supports communication, data integration, data sharing, and problem definition/resolution through use of an integrated presentation framework for ice and debris description and analysis. It provides an integrated engineering problem description, visualization analysis, and resolution presentation framework for ice and debris issues. These include, but are not limited to: pre-launch debris walk-downs; ice formation during tanking, pre-launch, and launch; debris hits on Orbiter identified on-orbit or post-landing; and external tank (ET) foam damage/texture mapping. The DIMAT system leverages the EMaps application and models, as well as Design Visualization Group (DVG) models to provide high-fidelity 3D models of the Orbiter, ET, Solid Rocket Boosters (SRB), and Pad. Proposed solutions generated by DIMAT integrate these models with ice/frost/debris location data, and can include 3D visualizations and digital photographs of ice and/or orbiter TPS (thermal protection system) debris hits. Ice/debris displayed on the EMaps model will represent actual size and location. The user will be able to access data and photograph displays by selecting the ice on the EMaps model.

The DIMAT analysis component allows the user to enter ice/debris data into the system from the Web, and to link to program-related databases and documents. The DIMAT inspector component is a laptop-based system that the ice/debris team uses to enter data, including digital photographs, in real time. It incorporates the diverse data repositories into a single database.

The software is simple for engineers and management to use, and automates data input into a repetitive report. The software easily adapts to another database and is comparative to system architecture. The model will be capable of being utilized for engineering analysis, and integrates and displays CAD-based drawings. The model can display integrated views/JPEGS from NSTS documents.

DIMAT can display and translate between any of the element coordinate systems, and has the ability to calculate x,y,z from manual/visual user input. Using x,y,z coordinates provides relative distances or clearances between points. It visually locates ice/debris on the model and determines x,y,z location. It has the ability to provide accurate size/geometry of reported ice/debris, and can isolate specific zones for identifying locations of ice/debris and surrounding hardware.

The model will contain locations, type, field of view, and simulated camera view for specified OTVs (Orbital Transfer Vehicles), and has the capability to link OTV to the application to display real-time status/picture of reported ice/debris. The model will have the capability to accept live feed from a selected OTV and overlay on the model.

This work was done by Robert Luecking and Cindy Nguyen of The Boeing Company for Johnson Space Center. MSC-25030-1

NASA Tech Briefs Magazine

This article first appeared in the March, 2014 issue of NASA Tech Briefs Magazine.

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