The ENVISAT Atmospheric Chemistry missions: monitoring status and evolution

Three atmospheric chemistry sensors are on-board the ENVISAT satellite (GOMOS [1], MIPAS [2] and SCIAMACHY [3]), which was launched on March 2002. Since then, the instruments and the processors have been accurately monitored in order to detect as early as possible any issue that could impact the quality of the data products. The ESA monitoring task performed by the IDEAS (Instrument Data quality Evaluation and Analysis Service) team is an on-going activity which is continuously improving with the purpose to ensure that all quality requirements are met at any moment of the mission lifetime and to provide the users with the best quality of data. In this paper we show how the quality monitoring has evolved since the beginning of the mission and how the monitoring baseline and environment was adjusted to mission events like instrument anomalies and/or degradations and data processor issues and how the users benefit from this.