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Selective Access and Editing in a Database

Ames Research Center, Moffett Field, California A complex organization with many tasks and sub-tasks, many phases, and many workers often will have an associated database with many users and groups, each of whom has a limited “need to know” (e.g. fine-grained security access controls) that does not extend to all information in the database. A group of users having access to information in a particular portion of the database may need to edit one or more documents to restate the original information more conveniently or accurately.

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Integrated Science Instrument Module (ISIM) Reconfigurable Packet Tool

Goddard Space Flight Center, Greenbelt, Maryland This tool supports the development of table loads required to inform the flight software of new on-the-fly packet definitions. The main outcome of the processing includes all the database products needed by the ground system to process the newly created packets. The tool ingests the latest telemetry definition from the James Webb Space Telescope (JWST) central database repository, and updates those definitions as required to support the dynamic packet definitions determined by the user of the tool. These updated telemetry definitions are in a form that can be directly sent to the JWST central database repository for inclusion in a new database version. The tool allows for the inclusion in the new packet definitions of any ISIM Flight Software (FSW) data types.

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Program Determines When MRO Observations Span More Than One Spacecraft Sequencing Period

NASA’s Jet Propulsion Laboratory, Pasadena, California Previously, the Mars Reconnaissance Orbiter (MRO) did not allow observations to go beyond the end of a planning period. However, opportunities for observing the Mars Science Laboratory (MSL) rover occur close enough to these boundaries to require the observations that support the rover to cross these boundaries. This requires the observation to be included in two planning cycles.

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Build, Assemble, Test (BAT) Planning and Execution Resources Application

NASA’s Jet Propulsion Laboratory, Pasadena, California BAT is a Web-based application used for the assembly and inspection of critical flight and associated ground support hardware for JPL missions that are developed in-house. It is used to capture and communicate data that is unique to a part or assembly that cannot be captured in an engineering drawing or a test procedure. It includes a list of parts and tools, along with specific steps required for building and assembling a piece of hardware.

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Tool for Turbine Engine Closed-loop Transient Analysis (TTECTrA)

John H. Glenn Research Center, Cleveland, Ohio The current steady-state performance-based system studies are not adequate to evaluate certain advanced technologies for the challenges associated with meeting the transient performance requirements without better definition and control of component operating margins. Additional dynamic analyses would require more detailed, physics-based, component-level models and controllers in order to better identify dynamic issues that may arise during operation of the engine. The additional complexity in these models increases the effort necessary throughout the design processes, including the system-analysis step. The solution would be a physics-based engine model with full envelope controller. C-MAPSS and C-MAPSS40k are examples of engine models with full envelope controllers, but because they are designed to model a specific engine, they are not good candidates for systems analysis.

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Next Generation of 3DGRAPE: Flexible Framework for Hypersonic Navier-Stokes Shuttle Orbiter Meshes

High-fidelity grids were generated rapidly using an assembly line approach with teamwork among NASA centers. Langley Research Center, Hampton, Virginia The class of 3DGRAPE codes is designed to generate volume grids using iterative methods to solve the non-linear, nonhomogeneous, elliptic partial differential heat equation with heat sources. The solution to the heat equation develops three-dimensional discrete points within a domain outside or inside a vehicle where fluid flow is simulated with Computational Fluid Dynamics (CFD). The latest version in this class of software is the 3DGRAPE/AL:V3, version 3 of the Three-Dimensional Grids about Anything by Poisson’s Equation with Upgrades from NASA Ames and Langley computer programs. The previous version, 3DGRAPE/AL:V2 [“Further Improvement in 3DGRAPE,” (LAR-16415-1) NASA Tech Briefs, Vol. 28, No. 9 (September 2004), p. 50], was advanced through the development of a new block-to-block boundary condition that guarantees C-I continuity between adjacent blocks sharing a common block face. Until this condition was developed, matching block faces were only created by projecting a straight line from one cell into each block from the matching face, thereby changing the initial grid that defines a structured multiple block system.

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Acoustic Emission Analysis Applet (AEAA) Software

This program has application for any pressure vessel acoustic emission data where advanced analysis is needed. John H. Glenn Research Center, Cleveland, Ohio Vendor software supplied with commercial acoustic emission equipment is incapable of performing the analysis required to characterize damage and make decisions on remaining life for NASA composite overwrapped pressure vessels (COPVs). The Acoustic Emission Analysis Applet (AEAA) software, currently a post-processing capability, will, in the second phase of the program, be modified to work in-situ in order to allow near-real-time decision-making on COPV damage and remaining life. Ultimately, this software will be utilized in-situ in pseudo-real time to monitor COPVs on space vehicles.

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