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Physical Sciences

Briefs : Physical Sciences
Automatic Localization of MSL Rover Mosaics in HiRISE Imagery

Mars Science Laboratory (MSL) surface operations require precise and accurate knowledge of rover position. A key means of establishing/verifying position is to match ortho-rectified mosaics from the MSL onboard cameras to orbital data. Manual localization by matching mosaics to HiRISE...

Briefs : Software
SAM/MSL Terrestrial Background Spectral Library

The SAM/MSL Terrestrial Background Spectral Library is one of the tools developed for identifying known terrestrial background for the Mars Science Laboratory (MSL) Sample Analysis at Mars (SAM) mission. The SAM instrument suite can detect trace elements in the ppb range and therefore requires a...

Briefs : Physical Sciences
Efficient Spectral Endmember Detection Onboard Spacecraft

Spaceflight and planetary exploration place severe constraints on the available bandwidth for downlinking large hyperspectral images. Communications with spacecraft often occur intermittently, so mission-relevant hyperspectral data must wait for analysis on the ground before it can inform...

Briefs : Software
Ray Tracing Model and Software for a Focused IR Lamp Heating System

When the space shuttle’s external tank (ET) was being filled with the cryogenic fuel components LOX and LH2, moisture from the surrounding atmosphere could condense onto the ET’s sprayed-on foam insulation (SOFI). This condensation could drip onto components, such as the LOX...

Briefs : Physical Sciences
Using the Web Sockets Full-Duplex Communication Channel to Display Real-Time Sensor Data via Standard Web Browser

Web Sockets is a network full-duplex communication channel that allows Javascript programs embedded in Web pages to establish connections to applications running on the server that provided the Web pages. Two-way communication is...

Briefs : Software
Earth Now Mobile Phone App

A mobile device application created by NASA visualizes recent global climate data from Earth science satellites, including air temperature, sea surface salinity, carbon monoxide, ozone, and water vapor, as well as gravity and sea level variations. This app is an Open GL simple 3D object viewer for the Apple IOS and...

Briefs : Physical Sciences
PACIFIC: Process Algebra Capture of Intent from Information Content

Mixed-initiative teams of robots and humans working side-by-side in close proximity to each other need to be capable of reasoning about the actions and activities of each other within a mission context. This capability requires the robotic agents to have a sense of self, and...

Briefs : Software
Analytical Expression of Elevation-Dependent Relative Air Mass for Atmospheric Extinction Simulations

This software enables one to calculate elevation-dependent relative air mass. When imaging a setting or rising Sun on the ground or from space, the shape and the intensity distribution of a captured image are affected by the following three...

Briefs : Software
Quantification of Trace Chemicals Using the Vehicle Cabin Atmosphere Monitor

A software program analyzes data measured by the Vehicle Cabin Atmosphere Monitor (VCAM) and quantifies the concentrations of trace chemicals detected by VCAM. The software contains a unique way to quantify the signal measured by VCAM, to establish the concentration...

Briefs : Physical Sciences
Improved Math Model for Multiphoto Measurement Systems

The bundle adjustment, or more specifically, the colinearity math model it is based on, is undisputedly the most accurate method to perform 3D scene reconstruction from multiple images. It has been the gold standard since first developed in 1957–1959. The limitations of the method have...

Briefs : Physical Sciences
Multipurpose Attitude and Pointing System (MAPS) Version 6.2

MAPS is a suite of software tools used for pre-flight planning, real-time support, and post-flight analysis of spacecraft attitude and pointing for the International Space Station (ISS), HII Transfer Vehicle (HTV), Automated Transfer Vehicle (ATV), and other low Earth orbit (LEO)...

Briefs : Physical Sciences
Steady-State Thermal Test Methodology

This innovation provides the following thermal properties data from a single steady-state test run: the effective thermal conductivity value (ke) for the full temperature difference, and multiple thermal conductivity values (λ) for intermediate temperatures. The test specimen (or material) is...

Briefs : Physical Sciences
Silicon Carbide Power Processing Unit for Hall Effect Thrusters

A high-efficiency, rad-hard, 3.5-kW SiC power supply was developed for the power processing unit (PPU) of Hall effect thrusters. This work specifically targets the design of a PPU power supply for the HiVHAC (High Voltage Hall Accelerator) thruster. The PPU power supply under...

Briefs : Physical Sciences
Intensity-Calibrated Hydrogen Flame Spectrum

The National Aeronautics and Space Administration (NASA) uses large quantities of liquid hydrogen and has expended significant effort in the development, testing, installation, and maintenance of hydrogen fire detectors based on ultraviolet, near-infrared, mid-infrared, and/or far-infrared flame...

Briefs : Physical Sciences
Exciting and Detecting Electromagnetic Energy in a High-Temperature Microwave Cavity

There is a need to perform accurate, high-temperature, complex dielectric constant measurements at microwave frequencies on materials, such as those on the surface of Venus (surface temperature 460 °C). One approach is to excite and detect a TE10n...

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