Program Performs High-Precision Spacecraft-Constellation Navigation

The Multiple Interferometric Ranging Analysis using GPS Ensemble (MIRAGE) computer program processes spacecraft-tracking data to determine orbits of single satellites, or...

GPS Drives Interactive Map Showing Position of Test Airplane

An electronic system that comprises airborne and ground-based subsystems generates data for a global real-time interactive map (GRIM) that displays the current position and...

Terrestrial Portable Spacecraft-Mission-Support Stations

A data-communication and -processing network of compact, laptop-computer-based portable stations communicating via the World Wide Web (WWW) has been proposed as a relatively...

Measuring Velocity of Ice by SRI Using Ascending and Descending Passes

A method of satellite radar interferometry (SRI) enables the remote measurement of three-dimensional velocities of ice flow over large areas of glaciers. At present,...

Automated Seafloor Classification System (ASCS)

As the highest resolution seismic system available, the automated seafloor classification system (ASCS) can remotely and accurately map sediment properties for many seafloor applications. The...