Day 4

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Paper title Swarm Magnetic Instruments: Data quality status and future evolutions
Authors
  1. Nicola Comparetti Serco SpA c/o European Space Agency ESA-ESRIN, Frascati, Italy Speaker
  2. Enkelejda Qamili Serco SpA c/o European Space Agency ESA-ESRIN, Frascati, Italy
  3. Lars Tøffner-Clausen Technical University of Denmark (DTU)
  4. Jonas Bregnhøj Nielsen DTU Space - Technical University of Denmark
  5. Jan Miedzik GMV Innovating Solutions Sp. z o.o.
  6. Krzysztof Zawada GMV
  7. Anna Mizerska GMV
  8. Lorenzo Trenchi Serco c/o ESA - ESRIN
  9. Roberta Forte SERCO c/o ESA-ESRIN
  10. Jérôme Bouffard ESA - European Space Agency
  11. Pierre Vogel European Space Agency (ESA-ESTEC), Noordwijk, The Netherlands
  12. Anja Stromme ESA - European Space Agency
Form of presentation Poster
Topics
  • B2. Earth Explorer missions
    • B2.05 Swarm - ESA's Extremely Versatile Magnetic Field and Geospace Explorer
Abstract text Swarm is the fifth mission in ESA’s fleet of Earth Explorers consisting of three identical satellites launched on 22 November 2013 into a near-polar, circular orbit. The mission studies the magnetic field and its temporal evolution providing the best-ever survey of the geomagnetic field and near-Earth space environment through precise measurements of the magnetic signals from Earth’s core, mantle, crust and oceans, as well as from ionosphere and magnetosphere.

Two satellites (Swarm Alpha and Swarm Charlie) form the lower pair flying side-by-side with a ~1.4° separation in longitude at an altitude decaying from ~460 km and at 87.4° inclination angle while the other satellite (Swarm Bravo) is cruising at a higher orbit with an altitude decaying from ~510 km and an inclination of 87.7°.
The three spacecraft are equipped with the same set of instruments: a Vector Field Magnetometer (VFM) for high-precision measurements of the magnetic field vector, an Absolute Scalar Magnetometer (ASM) to measure the magnitude of the magnetic field and to calibrate the VFM, a Star Tracker (STR) assembly for attitude determination, an Electric Field Instrument (EFI) for plasma and electric field characterization, a GPS Receiver (GPSR) and a Laser Retro-Reflector (LRR) for orbit determination and an Accelerometer (ACC) to measure the Swarm satellite’s non-gravitational acceleration in its respective orbit.

In this contribution we present an overview of the Swarm ASM, VFM and STR instruments status after seven years of operations. We also focus on the improvements which have been recently introduced in the L1B magnet data processing chain as well as on payload investigations and Cal/Val activities conduced to improve science quality.

Finally, this poster will provide an outlook of the long-term future evolutions in the data processing algorithms, with a particular focus on data quality improvements and their expected impact on scientific applications, and providing a roadmap for future implementations.