A new, precision three-axis attitude determination system low-earth-orbit spacecraft is the goal of this project. thesun/earth reference system (sers) uses the sun and the earthas attitude references for updating precision gyros and has the accuracy potential to meet the attitude determination and… More

An attitude sensor for spinning or dual spin spacecraft is proposed which provides full sky (4 pi steradian) coverage provides 5 independent attitude measurements in addition to accurately measuring the earth's diameter (which could be of substantial value for orbit determination when near the… More

Purpose: determine the feasibility of new, low cost components for 3-axis attitude control. subsystem cost goalis $100k. this will require engineering innovation and attention to manufacture and test processes and, ultimately,reasonable volume. the attitude control algorithms are flight proven on… More

Ithaco proposes developing a low-cost, low-power, earth sensor as a component in a complete low-cost attitude control system. the effort entails cost reduction of materials and manufacturing processes used on the scanner assembly presently in production. the effort also includes the development of a… More

This is a project leading to definition of a digital-processor system for small spacecraft. the first phase of the program will examine several small-satellite programs to determine a typical, small-satellite mission. next, these requirements will be translated into specific requirements for an… More

A program leading to the definition of a spaceborne attitudedetermination system based upon gps signals is proposed. the specific innovation involves processing gps signals without knowledge of the digital codes required for conventional gps receivers, making the system immune to performance… More

A program leading to the definition of a spaceborne attitude determination system based upon gravity field measurements is proposed. The specific innovation involves processing gravity gradient measurements from a network of accelerometers. Precision determination of attitude (0.003 degrees) can be… More