Mar 242016
Thirty Meter Telescope SysML Model

The Thirty Meter Telescope (TMT) system is currently being developed by the TMT Observatory Corporation. The main objective for the TMT related analysis is to provide state-dependent power roll-ups for different operational scenarios and demonstrate that requirements are satisfied by the design as well as mass roll-ups and duration analysis of the operational use cases. […]

Jul 152015
MBSE in Real-Life Space Exploration Projects

Systems engineering techniques have been used in spacecraft design, avionics, and engineering in general for over 60 years. At the moment, space exploration industries face new significant challenges: the largest optical and radio telescopes, missions to mars and exoplanets, reusable rockets, increase of small CubeSat satellites usage, service robots, and other. The constant increase in […]

Jul 012015
Statechart Autocoding for Curiosity Rover

Curiosity is one of the most ambitious and successful NASA missions. It is on Mars now. But not everyone knows that the generated code has been part of Curiosity’s Rover flight software since launch, and continues to run on board today. Code generated from state chart diagram is used for: auto-maneuver (Cruise phase), Spacecraft Modes […]

May 212015
Trade Study Modeling: NASA Integrated Network Monitor and Control Software Architecture

The National Aeronautics and Space Administration (NASA) Space Communications and Navigation office (SCaN) has commissioned a series of trade studies to define a new architecture intended to integrate the three existing networks that it operates, the Deep Space Network (DSN), Space Network (SN), and Near Earth Network (NEN), into one integrated network that offers users […]

Oct 132014
NASA Perspective on Trends in Executable Models

This poster focuses on the trends in UML simulation toolkits where tools interpret models instead of relying on generated code. This is an important development since it requires minimal configuration, can be used earlier in thelifecycle and can evolve as the design matures. Poster was presented at 2011 IV&V Annual Workshop by Tom Gullion