The Engineering Test Satellite-5 (ETS-5) was launched successfully on August 27, 1987, by the H-1 Launch Vehicle (three-stage test vehicle) from Tanegashima Space Center of the National Space Development Agency of Japan (NASDA) and was positioned on geostationary orbit at 150 degrees E. on September 17. The results of the initial functional checkout showed that the bus subsystems and the experimental equipment, such as the Aeronautical Maritime Experimental Transponder (AMEX) including all redundant systems, maintained the specified performance in orbit. During the normal operational phase, all operations in housekeeping, stationkeeping and experimentation using AMEX were executed smoothly and have produced good data. The present status of the satellite is fairly good and very stable, except for the malfunction of the Remote Interface Unit (RIU) 1A. Results of the development, launch and orbital operations of ETS-5 indicate that the mission objectives were met, such as establishing basic technologies for the bus system needed for the geostationary three-axis stabilized satellite, flight testing of new technologies for future application satellites, etc. Also, the EM/PFM development process and management of the residual life for flight worthiness of the PFM were applied successfully to the ETS-5 project.
Development and Flight Operations of Engineering Test Satellite-5 (ETS-5)
1988
30 pages
Report
Keine Angabe
Englisch
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