Information Metacatalog for a Grid

SWIM is a Software Information Metacatalog that gathers detailed information about the software components and packages installed on a grid resource. Information is currently gathered for Executable and Linking Format (ELF) executables and shared libraries, Java classes, shell scripts, and Perl and Python modules. SWIM is built on top of the POUR framework, which is described in the preceding article. SWIM consists of a set of Perl modules for extracting software information from a system, an XML schema defining the format of data that can be added by users, and a POUR XML configuration file that describes how these elements are used to generate periodic, ondemand, and user-specified information.

Posted in: Briefs, Software, Computer software and hardware


Automated Sequence Generation Process and Software

“Automated sequence generation” (autogen) signifies both a process and software used to automatically generate sequences of commands to operate various spacecraft. Autogen requires fewer workers than are needed for older manual sequence-generation processes and reduces sequence-generation times from weeks to minutes. The autogen software comprises the autogen script plus the Activity Plan Generator (APGEN) program. APGEN can be used for planning missions and command sequences. APGEN includes a graphical user interface that facilitates scheduling of activities on a time line and affords a capability to automatically expand, decompose, and schedule activities. The autogen script performs the following tasks:

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


Master Metadata Repository and Metadata-Management System

A master metadata repository (MMR) software system manages the storage and searching of metadata pertaining to data from national and international satellite sources of the Global Ocean Data Assimilation Experiment (GODAE) High Resolution Sea Surface Temperature Pilot Project [GHRSST-PP]. These sources (see figure) produce a total of hundreds of data files daily, each file classified as one of more than ten data products representing global sea-surface temperatures. The MMR is a relational database wherein the metadata are divided into granule-level records [denoted file records (FRs)] for individual satellite files and collection-level records [denoted data set descriptions (DSDs)] that describe metadata common to all the files from a specific data product. FRs and DSDs adhere to the NASA Directory Interchange Format (DIF). The FRs and DSDs are contained in separate sub-databases linked by a common field.

Posted in: Briefs, TSP, Software, Architecture, Data management, Marine vehicles and equipment, Satellites


Real-Time Data Display

  RT-Display is a MATLAB- based data acquisition environment designed to use a variety of commercial off-the-shelf (COTS) hardware to digitize analog signals to a standard data format usable by other post-acquisition data analysis tools. This software presents the acquired data in real time using a variety of signal-processing algorithms. The acquired data is stored in a standard Operator Interactive Signal Processing Software (OISPS) data-formatted file.

Posted in: Briefs, TSP, Software, Computer software and hardware, Data acquisition and handling, Displays


Collaborative Resource Allocation

Collaborative Resource Allocation Networking Environment (CRANE) Version 0.5 is a prototype created to prove the newest concept of using a distributed environment to schedule Deep Space Network (DSN) antenna times in a collaborative fashion. This program is for all space-flight and terrestrial science project users and DSN schedulers to perform scheduling activities and conflict resolution, both synchronously and asynchronously. Project schedulers can, for the first time, participate directly in scheduling their tracking times into the official DSN schedule, and negotiate directly with other projects in an integrated scheduling system.

Posted in: Briefs, Software, Antennas, Computer software and hardware


Imaging Software Provides Access to Critical Mission Images Across NASA

Presto Imaging Software Inmagic Woburn, MA 781-287-6277 www.inmagic.comWith every space shuttle mission, hundreds of individuals across NASA need to access extensive photographs, video footage, and other imaging assets in order to monitor launch results, review design decisions, and ensure mission safety. Additional video footage and still images shot on orbit enables NASA engineers to compare pre-flight and in-flight images in order to assess functionality and highlight areas that warrant further scrutiny. Until recently, only the Image Analysis Team (IAT) staff could view these baseline images, and sometimes with delays due to the complexity of accessing them.

Posted in: Application Briefs, Imaging, Software


Simulation Software Enables Development and Validation of NASA Probe Bus and Probe Carrier

MSC Nastran and MSC Adams Enterprise Simulation Software MSC.Software Corp. Santa Ana, CA 714-540-8900 www.mscsoftware.comNASA’s MIDEX Mission THEMIS (Time History of Events and Macroscale Interactions during Substorms) aims to resolve one of the oldest mysteries in space physics: namely, to determine what physical process in near-Earth space initiates the violent eruptions of the aurora that occur during substorms in the Earth’s magnetosphere. THEMIS is a 2-year mission consisting of five identical probes that will study the violent colorful eruptions of Auroras.

Posted in: Application Briefs, Simulation Software


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