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.
Probable influence of higher order earth gravity in determining equatorial ellipticity of earth from drift of Syncom II over Brazil
Orbital placement and control of Syncom-II SATELLITE
Syncom III engineering data, launch and orbital maneuvers, and television transmission
Baker-Nunn photography of Syncom II fourth stage ignition, duration, and burnout
Earth equatorial ellipticity measurements from longitude drift observations of stationary Syncom II satellite
The objectives of Space Shuttle Mission STS-32 are described along with major flight activities, prelaunch and launch operations, trajectory sequence of events, and landing and post-landing operations. The primary objectives of STS-32 are the deployment of a Navy synchronous communications satellite (Syncom 4) and the retrieval of the Long Duration Exposure Facility (LDEF) launched from the Challenger in April 1984. Secondary STS-32 payloads include a protein crystal growth experiment, the Fluids Experiment Apparatus (FEA) for the investigation of microgravity materials processing, the Mesoscale Lighting Experiment, the Latitude-Longitude Locator Experiment, the Americal Flight Echocardiograph, and an experiment to investigate neurospora circadian rhythms in a microgravity environment.
Engineering report on synchronous communications /SYNCOM/ satellite, communications ground stations, telemetry, and control ground systems
Synchronous communications satellite configuration, instrumentation, handling and test equipment, and systems design
Performance specifications and physical parameters of advanced synchronous communications /Syncom/ satellite system and subsystems
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
After 7.5 years of storage at ambient temperature, a solid propellant apogee motor was tested successfully. The performance of the motor did not deteriorate as a result of prolonged storage. Tabular performance data and graphic thrust and pressure variations are given.
Two efficient types of fluid nutation dampers that are simple, reliable, and inexpensive have been developed. In use, either damper may be mounted on a spinning body, parallel to the spin axis of the body and radially displaced from it, to eliminate nutation.
Communication satellites - echo i, echo ii, score, courier, telstar, relay and syncom
Nasa program survey in the field of communications satellites is presented, discussing syncom, echo, and relay satellite research
Subsatellite path for 24-hour orbits affected by changes in eccentricity, inclination, and argument of perigee - orbital path of syncom ii
Effect of shielding on solar energy conversion efficiency of syncom ii solar cell assembly