Moriba Kemessia Jah is an American space scientist and aerospace engineer known for his contributions to orbit determination and prediction especially as related to space situational awareness and space traffic monitoring. He is currently an associate professor of Aerospace Engineering and Engineering Mechanics at the University of Texas at Austin. Jah previously worked as a spacecraft navigator at the NASA Jet Propulsion Laboratory where he was a navigator for the Mars Global Surveyor Mars Odyssey Mars Express Mars Exploration Rover and his last mission was the Mars Reconnaissance Orbiter. He is a Fellow of the American Astronautical Society the Air Force Research Laboratory the International Association for the Advancement of Space Safety and the Royal Astronomical Society.