Earth-pointing

English Adjective ? Of a frame of reference, describing the orientation of a spacecraft relative to Earth. en 1995 Earth Horizon Modeling and Application to Static Earth Sensors on TRMM Spacecraft J. Keat, M. Challa, D. Tracewell, K. Galal Flight mechanics estimation theory symposium 1995 Kathy R. Hartman 229 Data from Earth sensor assemblies (ESAs) often are used in the attitude determination (AD) for both spinning and Earth-pointing spacecraft. en Earth pointing en 1989 Deborah M. Badi, Jeffery T. Farmer, Paul A. Garn, Gary L. Martin Coneceptual Design of a Synchronous Mars Telecommunications Satellite 10 Communication from Earth, on channels E1 and E2, is received by the larger Earth-pointing antenna on the Ka band up link frequency.