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Table 3 Model statistics of misfit between CHAOS-7 and Ørsted data

From: The CHAOS-7 geomagnetic field model and observed changes in the South Atlantic Anomaly

  Ørsted
N Mean rms
Fpolar (nT) 134,139 0.92 3.02
Fnon-polar (nT) 261,614 0.53 1.93
Br (nT) 47,841 0.01 4.04
\(B_\theta\) (nT) 47,841 − 0.07 4.73
\(B_\phi\) (nT) 47,841 0.05 4.80
δFAT, polar(nT) 68,097 − 0.00 0.35
δFAT, non-polar (nT) 142,801 0.00 0.19
  1. Mean and rms refer to Huber-weighted mean and rms values in units of nT. \(\delta {F_\text{AT}}\) denotes along-track field differences calculated at 15-s spacing