CRYOSAT PERFORMANCE MONITORING AND PRODUCT QA

摘要

The SIRAL instrument on-board CryoSat 2 has beenrnsuccessfully commissioned and is working well withinrnspecifications. The instrument has been characterised onrnthe ground, and in-flight by the Cal/Val campaign. Asrnwith any Earth Observation mission it is important torncontinue to monitor instrument performance in-flight inrnorder to detect any anomalous behaviour and to detectrnsigns of measurement drift due to component ageing.rnDuring the commissioning phase a team at UCL-MSSLrndeveloped a set of tools to monitor certain aspects ofrninstrument performance. Other tools were implementedrnto provide routine QA for important product parameters.rnWe present an overview of these tools and QA websiternand discuss the performance features and trendsrnobserved to date.rnThese tools will continue to operate throughout thernmission as part of the expert support given to ESA byrnMSSL.rnThe outputs can be viewed by interested users and servernto support confidence in the interpretation of datarnfrom the altimeter measurement system.