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Results for “SYNCHRONOUS SATELLITE SYSTEM”

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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At least 37 records · Page 2
All sourcesNASA NTRSDOE OSTI
NASA NTRS1969

Tracking and data relay satellite system.

Tracking and Data Relay Satellite System with synchronous orbit satellites to relay data between low altitude earth orbital spacecraft and mission control centers

Andrus, A. M. G.↗
NASA NTRS1972

The synchronous meteorological satellite /SMS/ system.

The responsibilities of the National Aeronautics and Space Administration (NASA) and Department of Commerce (DOC) pertaining to SMS are described in this paper. A description of the program objectives, payload, and spacecraft subsystems, is included along with an abbreviated description of the SMS ground system. Particular interest is directed towards the visible and infrared spin-scan radiometer (VISSR) as it will be the prime sensor and its performance directly effect the mission objectives. Also, of significant importance is the description of the communications subsystem since transmission and retransmission of image data, data relay, and data collection platform (DCP) transmissions play such a major role in the system. The conclusion is established that the current plans form a workable system for providing timely, high-quality day and night imaging of the earth's weather.

Burr, P. T.↗
NASA NTRS1973

The Synchronous Meteorological Satellite /SMS/ system

Description of the fundamental design criteria and operational features of the spacecraft subsystems and ground facilities comprising the SMS program. The main objectives of the program are to provide day and night information on the earth's weather by means of earth imaging, retransmission of imaged data, data collection, data relay, and space environment monitoring. Attention is given to the launch and orbital station-keeping functions, onboard sensors used to provide remote imagery, data transmission from the satellite to command and regional ground stations, and examples of meteorological services resulting from use of this satellite.

Fordyce, D. V.↗
NASA NTRS1967

OPLE experiment

Omega position location equipment feasibility experiment on using Omega navigation system and synchronous satellites for global location and data collection system

DATA ACQUISITION↗
NASA NTRS1972

Future techniques for tracking of synchronous satellites

A tracking system error analysis computer program is reported to study the feasibility of using range sum and range-rate sum measurements through a synchronous satellite to a user satellite, and range sum and range-rate sum measurements through a synchronous satellite to a ground based transponder for tracking of synchronous satellites. Error analysis transformed noise, bias, ground station location and orbit uncertainties into expected uncertainties in each of the orbits after tracking. Results show that both of the proposed measurement methods are feasible for determining and refining the orbits of future synchronous satellites.

Cooley, J. L.↗
NASA NTRS1968

Platform Electronics Package /PEP/.

Platform Electronics Package in Omega Navigational System and synchronous satellites use for global location and data collection system

Enge, F. J.↗
NASA NTRS1962

COMMUNICATIONS SATELLITES

Major communications satellite systems and evaluation of problems encountered in their establishment

SATELLITE GROUND SUPPORT NETWORK↗
NASA NTRS1962

SYNCHRONOUS-ORBIT COMMUNICATIONS SATELLITES

This paper will present (1) a discussion of some of the attractive features of a system using stationary or synchronous satellites, (2) some of the problem areas that we see in getting from where we are today to such a system, (3) a description of the NASA Syncom program, and (4) a very brief description of a more advanced synchronous satellite system.

Synchronous satellite↗