A Mössbauer spectrometer was built and evaluated using an amplified piezoelectric actuator under feedback control for the Doppler velocity drive. The actuator was driven with a quadratic displacement
This manuscript explores the use of Global NavigationSatellite System – Reflectometry (GNSS-R) data collected by theSoil Moisture Active Passive (SMAP) mission to estimate antennaview angle offsets. A
Monte is a mission critical system used by NASA for navigation and design of deep space missions has been used in over 40 missions over the last 18 years. Its continuous, reliable operation is conside
