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Briefs: Information Technology
Automated Planning of Science Products Based on Nadir Overflights and Alerts for Onboard and Ground Processing
A set of automated planning algorithms is the current operations baseline approach for the Intelligent Payload Module (IPM) of the proposed Hyper spectral Infrared Imager (HyspIRI) mission. For this operations concept, there are only local...
Briefs: Information Technology
Distributed Engine Control Empirical/Analytical Verification Tools
NASA’s vision for an intelligent engine will be realized with the development of a truly distributed control system featuring highly reliable, modular, and dependable components capable of both surviving the harsh engine operating environment and decentralized functionality. A set...
Briefs: Information Technology
Linked Autonomous Interplanetary Satellite Orbit Navigation
A navigation technology known as LiAISON (Linked Autonomous Interplanetary Satellite Orbit Navigation) has been known to produce very impressive navigation results for scenarios involving two or more cooperative satellites near the Moon, such that at least one satellite must be in an orbit...
Briefs: Information Technology
Deepak Condenser Model (DeCoM)
Development of the DeCoM comes from the requirement of analyzing the performance of a condenser. A component of a loop heat pipe (LHP), the condenser, is interfaced with the radiator in order to reject heat. DeCoM simulates the condenser, with certain input parameters. Systems Improved Numerical Differencing Analyzer...
Briefs: Information Technology
Flight Software Math Library
The flight software (FSW) math library is a collection of reusable math components that provides typical math utilities required by spacecraft flight software. These utilities are intended to increase flight software quality reusability and maintainability by providing a set of consistent, well-documented, and tested...
Briefs: Information Technology
Scheduling Operations for Massive Heterogeneous Clusters
High-performance computing (HPC) programming has become increasingly difficult with the advent of hybrid supercomputers consisting of multicore CPUs and accelerator boards such as the GPU. Manual tuning of software to achieve high performance on this type of machine has been performed by...
Briefs: Physical Sciences
Recirculating 1-K-Pot for Pulse-Tube Cryostats
A paper describes a 1-K-pot that works with a commercial pulse tube cooler for astrophysics instrumentation testbeds that require temperatures
Briefs: Physical Sciences
Method for Processing Lunar Regolith Using Microwaves
A paper describes a method of using microwave heating experiments on lunar simulants to determine the mechanism that causes lunar regolith to be such an excellent microwave absorber. The experiments initially compared the effects of sharp particle edges to round particle edges on the heating...
Briefs: Mechanical & Fluid Systems
Wells for In Situ Extraction of Volatiles from Regolith (WIEVR)
A document discusses WIEVRs, a means to extract water ice more efficiently than previous approaches. This water may exist in subsurface deposits on the Moon, in many NEOs (Near- Earth Objects), and on Mars. The WIEVR approach utilizes heat from the Sun to vaporize subsurface ice; the...
Briefs: Information Technology
Estimating the Backup Reaction Wheel Orientation Using Reaction Wheel Spin Rates Flight Telemetry from a Spacecraft
A report describes a model that estimates the orientation of the backup reaction wheel using the reaction wheel spin rates telemetry from a spacecraft. Attitude control via the reaction wheel assembly (RWA) onboard a spacecraft uses...
Briefs: Photonics/Optics
High-Power Single-Mode 2.65-μm InGaAsSb/AlInGaAsSb Diode Lasers
Central to the advancement of both satellite and in-situ science are improvements in continuous-wave and pulsed infrared laser systems coupled with integrated miniaturized optics and electronics, allowing for the use of powerful, single- mode light sources aboard both satellite and...
Briefs: Physical Sciences
A Hybrid Fiber/Solid-State Regenerative Amplifier with Tunable Pulse Widths for Satellite Laser Ranging
A fiber/solid-state hybrid seeded regenerative amplifier, capable of achieving high output energy with tunable pulse widths, has been developed for satellite laser ranging applications. The regenerative amplifier cavity uses a pair of Nd:YAG...
Briefs: Photonics/Optics
X-Ray Diffractive Optics
X-ray optics were fabricated with the capability of imaging solar x-ray sources with better than 0.1 arcsecond angular resolution, over an order of magnitude finer than is currently possible.
Briefs: Photonics/Optics
Optical Device for Converting a Laser Beam Into Two Co-aligned but Oppositely Directed Beams
Optical systems consisting of a series of optical elements require alignment from the input end to the output end. The optical elements can be mirrors, lenses, sources, detectors, or other devices. Complex optical systems are often difficult to align from...
Briefs: Physical Sciences
Cloud Absorption Radiometer Autonomous Navigation System — CANS
CAR (cloud absorption radiometer) acquires spatial reference data from host aircraft navigation systems. This poses various problems during CAR data reduction, including navigation data format, accuracy of position data, accuracy of airframe inertial data, and navigation data rate....
Briefs: Physical Sciences
Hyperspectral Imager-Tracker
The Hyperspectral Imager-Tracker (HIT) is a technique for visualization and tracking of low-contrast, fast-moving objects. The HIT architecture is based on an innovative and only recently developed concept in imaging optics. This innovative architecture will give the Light Prescriptions Innovators (LPI) HIT the...
Briefs: Information Technology
Software Method for Computed Tomography Cylinder Data Unwrapping, Re-slicing, and Analysis
A software method has been developed that is applicable for analyzing cylindrical and partially cylindrical objects inspected using computed tomography (CT). This method involves unwrapping and re-slicing data so that the CT data from the cylindrical object...
Briefs: Information Technology
Discrete Data Qualification System and Method Comprising Noise Series Fault Detection
A Sensor Data Qualification (SDQ) function has been developed that allows the onboard flight computers on NASA’s launch vehicles to determine the validity of sensor data to ensure that critical safety and operational decisions are not based on faulty sensor...
Briefs: Software
Web Application Software for Ground Operations Planning Database (GOPDb) Management
A Web application facilitates collaborative development of the ground operations planning document. This will reduce costs and development time for new programs by incorporating the data governance, access control, and revision tracking of the ground operations...
Briefs: Physical Sciences
A compact, low-cost laser communications transceiver was prototyped for downlinking data at 10 Gb/s from Earth-orbiting spacecraft. The design can be...
Briefs: Software
Application Program Interface for the Orion Aerodynamics Database
The Application Programming Interface (API) for the Crew Exploration Vehicle (CEV) Aerodynamic Database has been developed to provide the developers of software an easily implemented, fully self-contained method of accessing the CEV Aerodynamic Database for use in their analysis and...
Briefs: Electronics & Computers
The Digital Beamforming Synthetic Aperture Radar (DBSAR) is an eight-channel phased array radar system that employs solid-state radar transceivers, a microstrip patch antenna, and a...
Briefs: Electronics & Computers
Software Defined Radio With Parallelized Software Architecture
This software implements softwaredefined radio procession over multicore, multi-CPU systems in a way that maximizes the use of CPU resources in the system. The software treats each processing step in either a communications or navigation modulator or demodulator system as an...
Briefs: Manufacturing & Prototyping
Phase Change Material Thermal Power Generator
An innovative modification has been made to a previously patented design for the Phase Change Material (PCM) Thermal Generator, which works in water where ocean temperature alternatively melts wax in canisters, or allows the wax to re-solidify, causing high-pressure oil to flow through a hydraulic...
Briefs: Manufacturing & Prototyping
The Thermal Hogan — A Means of Surviving the Lunar Night
A document describes the Thermal Hogan, a new shelter concept that would be used on the Moon to moderate the extreme nighttime temperatures, allowing survival of equipment with minimal heater power. It is lightweight, has few mechanical parts, and would be relatively easy to deploy on the...
Briefs: Manufacturing & Prototyping
A design of an Active Magnetic Regenerative Refrigeration (AMRR) system has been developed for space applications. It uses an innovative 3He cryogenic circulator to...
Briefs: Materials
Nano-Ceramic Coated Plastics
Plastic products, due to their durability, safety, and low manufacturing cost, are now rapidly replacing cookware items traditionally made of glass and ceramics. Despite this trend, some still prefer relatively expensive and more fragile ceramic/glassware because plastics can deteriorate over time after exposure to...
Briefs: Materials
Preparation of a Bimetal Using Mechanical Alloying for Environmental or Industrial Use
Following the 1976 Toxic Substances Control Act ban on their manufacture, PCBs remain an environmental threat. PCBs are known to bio-accumulate and concentrate in fatty tissues. Further complications arise from the potential for contamination of commercial...
Briefs: Materials
Phase Change Material for Temperature Control of Imager or Sounder on GOES Type Satellites in GEO
An imager or sounder on satellites, such as the Geostationary Operational Environmental Satellite (GOES), in geostationary orbit (GEO) has a scan mirror and motor in the scan cavity. The GEO orbit is 24 hours long. During part of the orbit, direct...
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