Performance of the SAC-C satellite electricity storage system

The analysis of telemetry data of the Argentine electricity storage system SAC-C satellite is presented. Diagnostic indicators were established in order to evaluate the in-flight performance of the satellite nickel-hydrogen batteries. The state of charge of the batteries was related to the hydrogen pressure. A predictive analysis allowed us to detect early failure of the electricity storage system.

► Data analysis from Ni-H2 battery of SAC-C Argentine satellite is presented.
► Diagnostic indicators allow to monitor the state of charge of Ni-H2 battery.
► Diagnostic indicators also allow the detection of early failures in the battery.