Electrical/Electronics

Recurring Anomaly Detection System (ReADS)

Ames Research Center, Moffett Field, California NASA Engineering & Safety Center (NESC) subject matter experts analyze records in various International Space Station and shuttle databases to identify recurring anomalies. The key problems these experts face in analyzing such database records are:

Posted in: Briefs, Electronics & Computers, Electronics & Computers, Software

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Method for Automatic Optimization of Yaw Maneuvers for Orbiting Space Vehicles

Lyndon B. Johnson Space Center, Houston, Texas A new method for optimizing yaw attitude maneuvers on the International Space Station (ISS) was developed. Docking and undocking operations often require 180° yaw rotations, which are the most common large maneuvers on the ISS. When optimized, some large maneuvers, previously performed using thrusters, could be performed using control moment gyroscopes (CMGs) or with significantly reduced thruster firings. The ability to perform a non-propulsive or low-propulsive 180° yaw maneuver on the ISS has been proven through the zero propellant maneuver (ZPM) and the optimal propellant maneuver (OPM). The ZPM and OPM were created by Draper Laboratory using the computational approach. Each maneuver is unique, and can only be calculated on the ground because significant computer resources are needed for the calculations.

Posted in: Briefs, Electronics & Computers, Electronics & Computers, Software

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Architecture Framework for Fault Management Assessment and Design

Marshall Space Flight Center, Alabama Modern spacecraft, aircraft, and surface vehicles support complex science missions in harsh environments. These spacecraft and vehicles provide diverse functionality that is deployed on increasingly complex and heterogeneous hardware and mechanical systems, with stringent dependability requirements.

Posted in: Briefs, Electronics & Computers, Electronics & Computers, Software

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Spacecraft Parameter Database Tool

Goddard Space Flight Center, Greenbelt, Maryland The GOES-R Program has requirements to maintain knowledge of the GOES-R satellite onboard memory contents, including managing general satellite operations tables; processor memory dumps for memory verification; creating command loads, memory (table) loads, and command sequences to operate the satellite; verifying stored command and memory (table) loads; and to provide for operator-initiated memory dumps from satellite processors. The principal limitation is the tie to specific spacecraft architecture.

Posted in: Briefs, Electronics & Computers, Electronics & Computers, Software

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Eliminating the Need for Payload-Specific Coupled Loads Analyses Without Mission Risk

Marshall Space Flight Center, Alabama Amore efficient structural verification process for small satellites has been demonstrated. This new process eliminates the need for payload-specific coupled loads analysis (CLA) and simplifies structural testing while not increasing mission risk. The process entails the following:

Posted in: Briefs, Electronics & Computers, Electronics & Computers, Software

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Moon Tours Android

NASA’s Jet Propulsion Laboratory, Pasadena, California This Android app provides a native interface to the Lunar Mapping and Modeling Portal’s (LMMP) lunar data archive and analysis tools. It complements the iOS app previously released, incorporating a very similar feature set. Both apps contain a subset of the functionality available in the desktop/Web version. Compared to the iOS version of the LMMP, the Android version provides the additional tools necessary to perform elevation analysis and perimeter/area measurements.

Posted in: Briefs, TSP, Electronics & Computers, Electronics & Computers, Software

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Implementing High Density Embedded Computing (HDEC) Solutions

High Density Embedded Computing solutions are solving large data throughput needs in signals intelligence, ground control, and homeland security applications. This guide focuses on how to efficiently implement these technologies including the expanded availability of native PCI Express 3.0 interfaces.

Posted in: White Papers, Defense, Electronics, Electronics & Computers, Electronics & Computers, Software

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