典型文献
In-flight calibration of the spaceborne fluxgate magnetometer in the Martian magnetosheath
文献摘要：
In-flight calibration of the zero offset is crucial for ensuring high-precision measurement of the spaceborne fluxgatemagnetometer. Tianwen-1 is China's first Mars mission, and its orbiter will remain out of the solar wind for tens of days each year. Previous in-flight calibration methods might not be suitable for this orbiter during such a period. Recently, a new method was proposed by Wang GQ (2022b), which we refer to as the Wang method Ⅱ for ease of description. Here, we test the performance of this method in the Martian magnetosheath by using magnetic field data measured by the Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. We find that the accuracy of the Wang method Ⅱ is affected by the number of magnetic field subinterval events, the eigenvalues of the minimum variance analysis for each event, and the position of the spacecraft in the magnetosheath. The estimated zero offset varies over a period of ～27 days and has a 57.3％ probability of accuracy within 2.0 nT. After being smoothed with a temporal window of 27 days, the zero offset has a 48.4％ (99.3％) probability of accuracy within 1.0 (2.0) nT. Our tests suggest that the Wang method Ⅱ provides an option for the Tianwen-1 orbiter to perform in-flight calibration when the orbiter remains out of the solar wind for an extended period of time.
文献关键词：
中图分类号：
作者姓名：
GuoQiang Wang
作者机构：
Institute of Space Science and Applied Technology,Harbin Institute of Technology,Shenzhen 518055,China
文献出处：
引用格式：
[1]GuoQiang Wang-.In-flight calibration of the spaceborne fluxgate magnetometer in the Martian magnetosheath)[J].地球与行星物理（英文）,2022(06):592-600
A类：
fluxgate,magnetosheath,fluxgatemagnetometer,orbiter,2022b,EvolutioN,subinterval
B类：
In,flight,calibration,spaceborne,Martian,zero,offset,crucial,ensuring,high,precision,measurement,Tianwen,China,first,Mars,mission,its,will,out,solar,tens,days,each,year,Previous,methods,might,not,suitable,this,during,such,period,Recently,new,was,proposed,by,Wang,GQ,which,refer,ease,description,Here,performance,using,magnetic,field,data,measured,Atmosphere,Volatile,MAVEN,spacecraft,We,find,that,accuracy,affected,number,events,eigenvalues,minimum,variance,analysis,position,estimated,varies,over,has,probability,within,nT,After,being,smoothed,temporal,window,Our,tests,suggest,provides,option,when,remains,extended
AB值：
0.446861
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