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ARES I-X Ground Diagnostic Tool Technical Reviews

Two successful technical reviews were held at Kennedy Space Center (KSC) on July 9th. In the morning, there was a review of the Ares I-X Ground Diagnostic Prototype (GDP) task. In the afternoon, there was a review of the Exploration Technology Development Program (ETDP) Integrated Systems Health Management (ISHM) Fault Detection, Isolation, and Recovery (FDIR) task. The review team included representatives from KSC Ground Ops (including Bob Waterman), from Ares I (including Mike Watson and Stephen Johnson), from ETDP (including Dana Gould and David Korsmeyer), and from the KSC Launch Control System (LCS). The members of the review team asked many questions and provided some useful comments and criticisms. At the end of the day they gave both tasks Authority to Proceed (ATP).

BACKGROUND: Ares I-X will be the first uncrewed test flight of the Ares I Crew Launch Vehicle. Ares I-X is scheduled to launch in April 2009. The Ares I-X GDP task and the FDIR task are working together to produce a prototype ground diagnostic system that will be demonstrated during the Ares I-X pre-launch period at KSC. This demo will monitor the Ares I-X first-stage thrust-vector control (TVC) and the associated ground hydraulics while the vehicle is in the Vehicle Assembly Building (VAB) and while it is on the launch pad. Ares I-X GDP will model the TVC, while FDIR will model the ground hydraulics. The demo will combine TEAMS (a model-based diagnostic tool that is a commercial product from Qualtech Systems Inc., and was originally developed using NASA ARC SBIR funding), IMS (the Inductive Monitoring System, an anomaly detection tool that was developed at ARC by David Iverson), and SHINE (Spacecraft Health Inference Engine, a rule-based expert system from the Jet Propulsion Laboratory). The three tools will be deployed to Hangar AE at KSC, where they will be interfaced with live data from the Ares I-X vehicle and from the ground hydraulics. The outputs of the tools will be displayed on a screen in Hangar AE, which is the location from which the Ares I-X launch will be controlled and monitored.

The FDIR task is also developing an architecture for ground diagnostics, is planning to integrate this architecture with LCS, and is planning a demo which will monitor simulated liquid hydrogen loading in 2010.

NASA PROGRAM FUNDING: Ares I-X GDP is funded by Ares I "1%". FDIR is funded by ETDP ISHM

ARES I-X GDP TEAM: Mark Schwabacher (ARC, lead), Barbara Brown (ARC at KSC), John Ossenfort (EASI at ARC), Rebecca Oostdyk (ASRC at KSC), Charles Lee (EASI at ARC), Rodney Martin (ARC), John Wallerius (PSGS at ARC), Mark James (JPL), Pat Chang (JPL), Lawrence Markosian (PSGS at ARC), Martin Feather (JPL), Nathan Wood (KSC), Tim Taylor (MSFC).

FDIR TEAM: Barbara Brown (ARC at KSC, co-lead), Richard Nelson (KSC, co-lead), Bob Ferrell (KSC), Rebecca Oostdyk (ASRC at KSC), Matthew Pruitt (MSFC), Ellen Arens (KSC), Pedro Vazquez (ASRC at KSC), Emilio Valencia (KSC), Mark Schwabacher (ARC), Kai Goebel (ARC), David Hall (PSGS at ARC), Lilly Spirkovska (ARC), Ann Patterson-Hine (ARC), Martin Feather (JPL), Lawrence Markosian (PSGS at ARC), Michelle Amos (KSC), Ryan Mackey (JPL), Francesca Barrientos (USRA/RIACS at ARC), Steve Cornford (JPL)

Contact: Mark Schwabacher


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