Overview of Swarm Accelerometer Data Quality

C Siemes, G Apelbaum, Eelco Doornbos, J. De Teixeira Da Encarnação, J Flury, L Grunwaldt, PE Holmdahl Olsen, J Kraus, Radek Pereštý, S Svitlov, Jose van den IJssel

Research output: Contribution to conferenceAbstractScientific


The Swarm satellites carry accelerometers as part of their scientific payload. These instruments measure the non-gravitational acceleration due to forces like drag or radiation pressure acting on the spacecraft, from which thermospheric neutral densities and potentially winds can be derived. Unfortunately, the acceleration measurements suffer from a variety of perturbations, the most prominent being slow temperature-induced bias variations and sudden bias changes. Other less prominent perturbation includes spikes and artificial periodic signals. Though all perturbation are visible in the measurements of all Swarm accelerometers, their severity is much different for the three Swarm satellites. In this presentation, we illustrate all known disturbances and assess their severity for scientific exploitation of the accelerometer data separately for each Swarm satellite.
Original languageEnglish
Number of pages1
Publication statusPublished - 2017
Event4th Swarm Science Meeting & Geodetic Missions Workshop - Banff, Canada
Duration: 20 Mar 201724 Mar 2017
Conference number: 4


Conference4th Swarm Science Meeting & Geodetic Missions Workshop
Internet address


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