SEARCH · Search NASA
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Triaxiality of earth from observations on drift of syncom ii satellite - longitudinal dependence of earth gravitational field
Drift theory for 24 hour inclined satellite in longitude dependent earth gravity field - actual drift of Syncom II
Television tests with Syncom II synchronous communications satellite - ground terminals, spacecraft characteristics, and simulated transmission tests
Orbital placement and control of Syncom-II SATELLITE
Use of tracking data from Syncom II satellite to define longitude-dependent gravity field of earth
Syncom-II satellite drift rate in equatorial orbit used to define longitudinal dependence of earth gravitational field
Earth equatorial ellipticity from Syncom II SATELLITE longitude drift
Earth equatorial ellipticity measurements from longitude drift observations of stationary Syncom II satellite
Transmission of u.n. general assembly opening by relay i and syncom ii via television and radio
Subsatellite path for 24-hour orbits affected by changes in eccentricity, inclination, and argument of perigee - orbital path of syncom ii
Performance characteristics of frequency translation transponder units for advanced Syncom satellite, and data on multiple access transponder units
Effect of shielding on solar energy conversion efficiency of syncom ii solar cell assembly
Spacecraft systems design, reliability, support equipment, alternate configurations, and radiation instrumentation payload for Syncom II
Probable influence of higher order earth gravity in determining equatorial ellipticity of earth from drift of Syncom II over Brazil
Communication satellites - echo i, echo ii, score, courier, telstar, relay and syncom
Syncom III engineering data, launch and orbital maneuvers, and television transmission
Syncom II launch by three stage thrust-augmented Delta vehicle configuration