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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.
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Orbiting Data Relay Network communications system provides continuous wideband communication between ground and earth orbiting spacecraft via synchronous satellite repeaters
Communication and tracking relay system for manned spacecraft in orbit using synchronous altitude satellites
Data relay satellite system to provide communication capability between earth orbiting space vehicles and Mission Control Center
Radio frequency interference and performance of terrestrial and satellite radio relay systems
Communications and tracking relay experiment
Solar flare and sunspot effects on VHF communications between synchronous satellite relay and ground stations
Analysis and trade studies of low altitude satellite using data relay satellite system
Perturbation analysis for angular orbital elements of Relay 2 satellite
Multiple access satellite relay system for low data rate users
WEFAX /Weather Facsimile/ experiment to explore operational feasibility of direct meteorological data transmission via satellite relay from central station to remote stations
Orbiting Data Relay Network communications system provides continuous wideband communication between ground and earth orbiting spacecraft via synchronous satellite repeaters
Data relay satellite systems for support of NASA R and D missions, discussing communications between satellites and to mission control
Electric relays requirements for spacecraft with magnetic field constraints
Sealed and unsealed relay coils temperature rise at simulated outer space air pressure levels
RFI effects of earth based emitters on operation of geosynchronous satellites for data relay from near earth orbiting satellites, noting frequency assignments
Telecommunications performance of two lunar relay satellite system /LRSS/, determining operation capabilities with Apollo communications system
Systems engineering of data relay terminal for Saturn Workshop
Parameters affecting contact performance of high reliability relays