USE OF ON-BOARD FILES FOR TELEMETRY STORAGE AND RETRIEVAL

摘要

The demand for an increasing of the autonomy level ofthe spacecraft leads to reduce the volume of telemetrydata downloaded to the ground. In opposite there is aneed for a higher level of observability. An elegantsolution is to store a volume of data larger than thespacecraft is able to download. During thecommunication session, only a selection of stored datais downloaded thanks to an on-board processing able todiscard the redundant or the not pertinent data. The useof on-board files facilitates the management of storeddata.This paper describes the results of a CNES study thathad the objectives to define an architecture concept,based on the use of on-board files, to validate it througha demonstrator and to analyse the impact on thespacecraft operations.