Special Coverage

Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applications
Evaluation Standard for Robotic Research
Small Robot Has Outstanding Vertical Agility
Smart Optical Material Characterization System and Method
Lightweight, Flexible Thermal Protection System for Fire Protection
Home

Open-Standard Software Helps Operate James Webb Space Telescope

Rational Rose Real-time visual modeling development software IBM Armonk, NY 914-766-1362 www.ibm.com/software/rationalSet to launch by 2013, the James Webb Space Telescope (JWST) will succeed the Hubble Space Telescope (HST) to study galaxy, star, and planet formation in the universe. Nearly 20 years ago, when the components and instruments on the HST were developed, software was built by multiple organizations using proprietary software for systems development. This approach meant that maintenance, changes, and repairs made to components and instruments required multiple tools. Because separate space agencies from several countries around the world are developing the software that will operate the JWST’s Guidance, Navigation, and Control (GNC) systems, Command and Data Handling (CNDH), and the Integrated Science Instrument Module (ISIM) that houses the JWST’s four primary instruments, it was imperative for NASA to weave a common thread throughout the project that would circumvent expensive and time-consuming software issues.

Posted in: Application Briefs, Software

Read More >>

Program Analyzes Spacecraft/Ground Radio Links

A versatile computer program analyzes the link-design control table necessary for designing the telecommunication subsystem of a spacecraft in orbit around the Earth or on a deep-space mission. The program helps to calculate all the important parameter values for spacecraft-to-ground telemetry links and ground-to-spacecraft command links. The program also enables the design of turn-around ranging and one-way ranging links, which are very useful for determining the positions of spacecraft and for satisfying various other operational needs. The user can specify several aspects of spacecraft telecommunication- subsystem design, including the nature of the antenna (paraboloidal reflector, patch, dipole, etc.), the power-amplifier rating, and the link data rate.

Posted in: Briefs, TSP, Software, Computer software and hardware, Radio equipment, Telecommunications, Spacecraft

Read More >>

World Wind 3D Earth Viewing

World Wind allows users to zoom from satellite altitude down to any place on Earth, leveraging high-resolution LandSat imagery and SRTM (Shuttle Radar Topography Mission) elevation data to experience Earth in visually rich 3D. In addition to Earth, World Wind can also visualize other planets, and there are already comprehensive data sets for Mars and the Earth’s moon, which are as easily accessible as those of Earth.

Posted in: Briefs, Software

Read More >>

JavaGenes Molecular Evolution

JavaGenes is a general-purpose, evolutionary software system written in Java. It implements several versions of a genetic algorithm, simulated annealing, stochastic hill climbing, and other search techniques. This software has been used to evolve molecules, atomic force field parameters, digital circuits, Earth Observing Satellite schedules, and antennas. This version differs from version 0.7.28 in that it includes the molecule evolution code and other improvements. Except for the antenna code, JaveGenes is available for NASA Open Source distribution.

Posted in: Briefs, Software

Read More >>

Flight Dynamics Software Supports NASA Mission to Measure Carbon Dioxide

focusLEO Low-Earth Orbit (LEO) flight dynamics software GMV Rockville, MD 301-926-0119 www.gmv.comThe Orbiting Carbon Observatory (OCO), managed by NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, CA, is a mission to measure carbon dioxide in the Earth’s atmosphere. Orbital Sciences Corp. of Dulles, VA, will provide the OCO project’s spacecraft and real-time mission operations.

Posted in: Application Briefs, Software

Read More >>

AIRSAR Web-Based Data Processing

The AIRSAR automated, Web-based data processing and distribution system is an integrated, end-to-end synthetic aperture radar (SAR) processing system. Designed to function under limited resources and rigorous demands, AIRSAR eliminates operational errors and provides for paperless archiving. Also, it provides a yearly tune-up of the processor on flight missions, as well as quality assurance with new radar modes and anomalous data compensation.

Posted in: Briefs, TSP, Software

Read More >>

Translator for Optimizing Fluid-Handling Components

A software interface has been devised to facilitate optimization of the shapes of valves, elbows, fittings, and other components used to handle fluids under extreme conditions. This software interface translates data files generated by PLOT3D (a NASA grid-based plotting-and- data-display program) and by computational fluid dynamics (CFD) software into a format in which the files can be read by Sculptor, which is a shape-deformation- and-optimization program. Sculptor enables the user to interactively, smoothly, and arbitrarily deform the surfaces and volumes in two- and three-dimensional CFD models. Sculptor also includes design-optimization algorithms that can be used in conjunction with the arbitrary-shape-deformation components to perform automatic shape optimization. In the optimization process, the output of the CFD software is used as feedback while the optimizer strives to satisfy design criteria that could include, for example, improved values of pressure loss, velocity, flow quality, mass flow, etc.

Posted in: Briefs, Software

Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.