Ye Zhu, A. Du, H. Luo, Qiao Donghai, Ying Zhang, Y. Ge, Jiefeng Yang, Sun Shuquan, Zhao-Qing Lin, J. Ou, Zhifan Guo, Lin Tian
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The fluxgate magnetometer of the Low Orbit Pearl Satellites (LOPS): overview of in-flight performance and initial results
Abstract. The Low Orbit Pearl Satellite series consists of six
constellations, with each constellation consisting of three identical
microsatellites that line up just like a string of pearls. The first
constellation of three satellites were launched on 29 September 2017, with
an inclination of ∼ 35.5∘ and ∼ 600 km
altitude. Each satellite is equipped with three identical fluxgate
magnetometers that measure the in situ magnetic field and its low-frequency fluctuations in the Earth's low-altitude orbit. The triple sensor
configuration enables separation of stray field effects generated by the
spacecraft from the ambient magnetic field (e.g., Zhang et al., 2006). This
paper gives a general description of the magnetometer including the instrument
design, calibration before launch, in-flight calibration, in-flight performance, and initial results. Unprecedented spatial coverage
resolution of the magnetic field measurements allow for the investigation of the
dynamic processes and electric currents of the ionosphere and magnetosphere,
especially for the ring current and equatorial electrojet during both
quiet geomagnetic conditions and storms. Magnetic field measurements from LOPS could be important for studying
the method to separate their contributions of the Magnetosphere-Ionosphere (M-I) current system.
期刊介绍:
Geoscientific Instrumentation, Methods and Data Systems (GI) is an open-access interdisciplinary electronic journal for swift publication of original articles and short communications in the area of geoscientific instruments. It covers three main areas: (i) atmospheric and geospace sciences, (ii) earth science, and (iii) ocean science. A unique feature of the journal is the emphasis on synergy between science and technology that facilitates advances in GI. These advances include but are not limited to the following:
concepts, design, and description of instrumentation and data systems;
retrieval techniques of scientific products from measurements;
calibration and data quality assessment;
uncertainty in measurements;
newly developed and planned research platforms and community instrumentation capabilities;
major national and international field campaigns and observational research programs;
new observational strategies to address societal needs in areas such as monitoring climate change and preventing natural disasters;
networking of instruments for enhancing high temporal and spatial resolution of observations.
GI has an innovative two-stage publication process involving the scientific discussion forum Geoscientific Instrumentation, Methods and Data Systems Discussions (GID), which has been designed to do the following:
foster scientific discussion;
maximize the effectiveness and transparency of scientific quality assurance;
enable rapid publication;
make scientific publications freely accessible.