Information Technology & Software

Program for Viewing Remotely Generated Summary Data

The Beacon Visualization (BeaVis) computer program provides a ground-based computing environment for displaying, tracking, storing, and maneuvering through telemetric data streams that contain summaries of engineering data generated aboard a spacecraft. BeaVis can also serve as a general-purpose software tool for monitoring data of other specific types. In the original spacecraft-to-ground application, BeaVis enables the user to scroll through a graphical depiction of telemetry downlinks to select desired data. Summary data are represented graphically, with hypertext links to strip charts of sensor channels represented by summary data packets. BeaVis also generates time-line and tabular displays. A time line depicts when, during a spacecraft mission, summary downlinks and beacon tone detections have occurred. The tabular and strip-chart displays are available through hypertext links from the time-line display. BeaVis also provides graphical user interface elements that show such specific summary data components as changes in mission activities, snapshot telemetry, episode data, and user summary data. The program also includes a software tool for creating tables of parameters that are uploaded to a spacecraft.

Posted in: Briefs, TSP, Information Sciences, Computer software / hardware, Computer software and hardware, Data acquisition and handling, Imaging, Imaging and visualization, Telemetry, Computer software / hardware, Computer software and hardware, Data acquisition and handling, Imaging, Imaging and visualization, Telemetry
Read More >>

Numerical Speed of Sound

This concept is applicable to flows at all speeds.

The numerical speed of sound is a variable that is used in the numerical solution of flows from low to high speeds. The numerical speed of sound is an effective speed of sound associated with Mach numbers used in the numerical splitting of a flow into upwind and downwind mass-flux components that are defined on the faces of cells of a computational grid into which a flow volume is divided. Depending on the details of a given flow problem and the algorithm chosen to solve it, the numerical speed of sound may or may not equal the physical speed of sound.

Posted in: Briefs, TSP, Information Sciences, Mathematical models, Noise, Noise
Read More >>

Knowledge-Based Software for Generating and Changing Plans

Effects of changes in requirements and resources are automatically taken into account.

A methodology of computer-aided planning has been developed to (1) accelerate the generation of plans for activities within complex systems of personnel and equipment; (2) increase the quality of the plans thus generated; and (3) decrease the difficulty of predicting and responding to the effects of changes in plans, requirements, resources, and/or other constraints. Originally intended for application to planning of missions of the space shuttle and other spacecraft, the methodology could also be applied to strategic business planning, management of projects, general scheduling, and planning of manufacturing processes and systems.

Posted in: Briefs, Information Sciences, Artificial intelligence, Computer software / hardware, Computer software and hardware, Artificial intelligence, Computer software / hardware, Computer software and hardware, Systems management, Spacecraft
Read More >>

Electronic Time-Card System

A computer-based automated system has been developed to replace a cumbersome and error-prone paper-based system for recording employees' work times. The automated system minimizes the consumption of paper and eliminates the need for weekly pick-up and delivery of time sheets throughout the Kennedy Space Center. The computer-based system simplifies daily entry of times by employees, who select jobs worked from lists provided by supervisors. Employees "sign" their "time cards" electronically at the end of each week. Supervisors can review employees' electronic time cards daily and can sign the time cards of employees under their supervision at the end of each week, all electronically. The system accommodates reassignment of employees to different departments or supervisors, as well as replacement of supervisors who call in sick. The system software automatically enforces rules that control the processing of time-sheet, payroll, and project data, including rules on who can charge how much time to which account. The electronic-time-card system was compiled using Visual Basic incorporating SQL server.

Posted in: Briefs, Information Sciences, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware, Data management, Personnel
Read More >>

Software Facilitates Access to a Scientific Data Base

This program supports cooperative international scientific efforts.

The Coordinated Data Analysis Workshop Web (CDAWeb) is a web-based service that facilitates access to a scientific data base of the International Solar-Terrestrial Physics (ISTP) program and other programs that generate public scientific information. In this data base, physical-science parameters from diverse international sources are stored in the Common Data Format (CDF) standard developed by the National Space Science Data Center (NSSDC).

Posted in: Briefs, Information Sciences, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware, Data management
Read More >>

A Standard for Scientific Data Files

This standard and the software that implements it facilitate collaboration among scientists.

The term "Instrument Data File Set" (IDFS) denotes both software and an underlying concept of a prescribed format for files of scientific data and metadata. The IDFS was developed to satisfy a need, in the space science community, to maintain data and metadata in a format that promotes efficient use of the information and that facilitates access to the information, thereby enhancing the ability of scientists to engage in collaborative research. Within the space science community, the IDFS has become a standard by default.

Posted in: Briefs, Information Sciences, Communication protocols, Computer software / hardware, Computer software and hardware, Communication protocols, Computer software / hardware, Computer software and hardware, Data management, Standardization
Read More >>

Software for Display and Analysis of Scientific Data

Data can be obtained from globally distributed archives, then displayed and analyzed quickly.

The Southwest Data Display and Analysis System (SDDAS) is a flexible, extensible software system intended to support analysis of space physics data from multiple instruments and multiple spacecraft missions. SDDAS was developed in response to the need of space scientists to be able to gain access to data and to display data, without concern about data management details, so that they can focus their efforts on scientific research.

Posted in: Briefs, Information Sciences, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware, Data management
Read More >>

Software for Analyzing Forth Programs

Various parts of code can be categorized and quantified in selectable ways.

Forth Source Code Analysis Tool Set (FSCATS) is a computer program that provides a wide range of capabilities for documenting, analyzing, and reverse-engineering computer programs written in the Forth programming language. FSCATS also aids in the management of software, estimating costs of software, and development of metrics for characterizing software.

Posted in: Briefs, Information Sciences, CAD / CAM / CAE, CAD, CAM, and CAE, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware
Read More >>

Rapid-Prototyping Virtual-Reality Software Tool Kit

The user need not engage in a tedious learning process.

The VrTool computer program enables its user to rapidly develop a prototype virtual-reality (VR) application program. Users of VR application programs need software that can help them keep pace with the rapidly evolving VR field. None of the previously commercially available VR software tool kits affords rapid-prototyping capabilities because all require users to generate their own code. This makes it necessary for users to engage in a tedious learning process to gain understanding of the application-program-generation process, which is also tedious.

Posted in: Briefs, Information Sciences, Rapid prototyping, Virtual reality, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware
Read More >>

Program for Parallel Distributed Processing

This software package automatically distributes mutually independent tasks to networked workstations.

A software system has been devised to manage automatically (1) the distribution of mutually independent computing tasks to computer workstations in NASA's Flight Design and Analysis System (FADS) network and (2) the execution of those tasks on those workstations. This program parallelizes serial tasks, making it possible to execute them concurrently. This program is a substantial improvement over previously developed special-purpose parallel-processing software systems used by NASA.

Posted in: Briefs, Information Sciences, CAD / CAM / CAE, CAD, CAM, and CAE, Computer software / hardware, Computer software and hardware, Computer software / hardware, Computer software and hardware, Performance upgrades, Spacecraft
Read More >>

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