|Paper title||Swarm Electric Field Instruments, processors and data quality: current status, future evolutions, scientific highlights|
|Form of presentation||Poster|
Swarm is an ESA Earth Explorer mission launched on 2013 with the purpose of measuring the geomagnetic field and its temporal variations, the ionospheric electric fields and currents as well as plasma parameters like density and temperature. The aim is to characterise these phenomena for a better understanding of the Earth’s interior and its environment.
The space segment consists of a constellation of three identical satellites in near-polar low orbits (Swarm Alpha, Bravo and Charlie) carrying a set of instruments to achieve the mission objectives: a Vector Field Magnetometer (VFM) and an Absolute Scalar Magnetometer (ASM) for collecting high-resolution magnetic field measurements; three star trackers (STR) for accurate attitude determination; a dual-frequency GPS receiver (GPSR) for precise orbit determination; an accelerometer (ACC) to retrieve measurements of the satellite’s non-gravitational acceleration; an Electric Field Instrument (EFI) for the plasma and electric field related measurements, composed of two Langmuir Probes (LPs) and two Thermal Ion Imagers (TIIs).
The science data derived from instruments on board Swarm are processed by the Swarm Level 0, Level 1A and Level 1B operational processors operated by the Swarm Ground segment. The generated products are continuously monitored and improved by the ESA/ESRIN Data quality Team of the Swarm Data Innovation and Science Cluster (DISC).
This poster focuses on presenting the current status and performances of the EFI instruments and related L1B PLASMA data products.
The latest data validation activities and results are presented, along with several tests run in-orbit performed to improve data quality, and near-future validation and calibration plans. In particular, it will present the most significant payload investigations, performed since the beginning of the mission up to the most recent initiatives which aim at improving Swarm data science quality.
Moreover this work means to present potential long-term future improvements both concerning instruments and processor performances, including current studies and tests carried on in order to identify the best way forward for the evolution of the mission.