Maximum-variance gradiometer technique for removal of spacecraft-generated disturbances from magnetic field data

Constantinescu, Dragoş; Auster, H. U.; Delva, M.; Hillenmaier, O.; Magnes, W.; Plaschke, Ferdinand

doi:10.5194/gi-9-451-2020

Cited by 20 publications

(23 citation statements)

References 24 publications

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“…In order to monitor the perturbations from the station in more detail, several single magnetometer sensors will be mounted on various places directly on the station (Constantinescu et al, 2020). Additionally, we propose two current monitors, monitoring the currents flowing from the solar panels, which are expected to contribute the largest magnetic field perturbations.…”

Section: Cmagf: 3-axis Fluxgate Magnetometermentioning

confidence: 99%

Space plasma physics science opportunities for the lunar orbital platform - Gateway

Dandouras

Taylor

Keyser

et al. 2023

Front. Astron. Space Sci.

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The Lunar Orbital Platform - Gateway (LOP - Gateway, or simply Gateway) is a crewed platform that will be assembled and operated in the vicinity of the Moon by NASA and international partner organizations, including ESA, starting from the mid-2020s. It will offer new opportunities for fundamental and applied scientific research. The Moon is a unique location to study the deep space plasma environment. Moreover, the lunar surface and the surface-bounded exosphere are interacting with this environment, constituting a complex multi-scale interacting system. This paper examines the opportunities provided by externally mounted payloads on the Gateway in the field of space plasma physics, heliophysics and space weather, and also examines the impact of the space environment on an inhabited platform in the vicinity of the Moon. It then presents the conceptual design of a model payload, required to perform these space plasma measurements and observations. It results that the Gateway is very well-suited for space plasma physics research. It allows a series of scientific objectives with a multi-disciplinary dimension to be addressed.

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Section: Cmagf: 3-axis Fluxgate Magnetometermentioning

confidence: 99%

Space plasma physics science opportunities for the lunar orbital platform - Gateway

Dandouras

Taylor

Keyser

et al. 2023

Front. Astron. Space Sci.

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“…This approach proved highly effective for the 3U Ex-Alta 1 CubeSat (Miles et al, 2016). Active noise removal (e.g., Ness et al, 1971;Constantinescu et al, 2020) is also possible using an alternative gradiometer setup (e.g., two separated miniature sensors on the outer boom segment).…”

Section: Magnetic Cleanlinessmentioning

confidence: 99%

MagneToRE: Mapping the 3-D Magnetic Structure of the Solar Wind Using a Large Constellation of Nanosatellites

Maruca

Rueda

Bandyopadhyay

et al. 2021

Front. Astron. Space Sci.

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Unlike the vast majority of astrophysical plasmas, the solar wind is accessible to spacecraft, which for decades have carried in-situ instruments for directly measuring its particles and fields. Though such measurements provide precise and detailed information, a single spacecraft on its own cannot disentangle spatial and temporal fluctuations. Even a modest constellation of in-situ spacecraft, though capable of characterizing fluctuations at one or more scales, cannot fully determine the plasma’s 3-D structure. We describe here a concept for a new mission, the Magnetic Topology Reconstruction Explorer (MagneToRE), that would comprise a large constellation of in-situ spacecraft and would, for the first time, enable 3-D maps to be reconstructed of the solar wind’s dynamic magnetic structure. Each of these nanosatellites would be based on the CubeSat form-factor and carry a compact fluxgate magnetometer. A larger spacecraft would deploy these smaller ones and also serve as their telemetry link to the ground and as a host for ancillary scientific instruments. Such an ambitious mission would be feasible under typical funding constraints thanks to advances in the miniaturization of spacecraft and instruments and breakthroughs in data science and machine learning.

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“…Constantinescu et al. (2020) use maximum variance analysis (MVA) to clean spacecraft magnetometer data. The MVA algorithm finds an orthogonal set of axes to maximize the variance of the measured signals.…”

Section: Introductionmentioning

confidence: 99%

“…BSS is the separation of a mixture of source signals without prior knowledge of the signal type or magnetometer location. Constantinescu et al (2020) use maximum variance analysis (MVA) to clean spacecraft magnetometer data. The MVA algorithm finds an orthogonal set of axes to maximize the variance of the measured signals.…”

mentioning

confidence: 99%

Separation of Spacecraft Noise From Geomagnetic Field Observations Through Density‐Based Cluster Analysis and Compressive Sensing

Hoffmann

Moldwin

2022

JGR Space Physics

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Spacecraft equipped with magnetometers can be used to capture in situ measurements of magnetic phenomena in the geospace environment. These measurements are necessary to answer key questions about the nature of the Earth's magnetosphere and its interaction with interplanetary magnetic fields. Understanding how the heliosphere directs the flow of energy, mass, and momentum between the Sun and Earth is critical for applications such as space weather modeling, space exploration, and climate science. A number of missions use spacecraft equipped with magnetometers to measure magnetic fields. For example, The European Space Agency's SWARM mission uses a constellation of three satellites to provide high fidelity magnetic field measurements used to model the Earth's magnetic field and study the Earth's dynamo (Fratter et al., 2016). Magnetometers provide invaluable data for space science research, however, the quality of the data are often limited by magnetic noise generated by the spacecraft. Electrical systems onboard a spacecraft generate stray magnetic fields that interfere with magnetic field measurements. The strength of magnetic fields in the geospace environment ranges several orders of magnitude with natural phenomena such as the interplanetary magnetic field occurring on the order of 6 nT to the Earth's magnetosphere in low-Earth orbit measuring on the order of 60,000 nT. Spacecraft subsystem magnetic fields may completely eclipse the perturbations in natural magnetic fields which are of interest to understanding waves and currents in the solar wind and magnetosphere. The presence of these stray magnetic fields is a significant obstacle for missions that utilize magnetic field data (Ludlam et al., 2009;Russell, 2004).

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Maximum-variance gradiometer technique for removal of spacecraft-generated disturbances from magnetic field data

Cited by 20 publications

References 24 publications

Space plasma physics science opportunities for the lunar orbital platform - Gateway

Space plasma physics science opportunities for the lunar orbital platform - Gateway

MagneToRE: Mapping the 3-D Magnetic Structure of the Solar Wind Using a Large Constellation of Nanosatellites

Separation of Spacecraft Noise From Geomagnetic Field Observations Through Density‐Based Cluster Analysis and Compressive Sensing

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