Table 2 Regularization parameters used for geomagnetic field models
From: Co-estimation of geomagnetic field and in-orbit fluxgate magnetometer calibration parameters
Parameter | Units | Value | Note |
|---|---|---|---|
\(\lambda _3\) | \(\text {year}^3\) | \(8 \cdot 10^{-1}\) | |
\(\lambda _2^{\text {gap}}\) | \(\text {year}^2\) | \(10^2\) | Models C, D, E only |
\(\lambda _{\alpha _1} = \lambda _{\alpha _2} = \lambda _{\alpha _3}\) | \(\text {nT} \cdot \text {year}^2 / \text {deg}\) | \(3 \cdot 10^2\) | Not used for Model E |
\(\lambda _{{{\mathscr {m}}}}\) | \(\text {nT} \cdot \text {year}^2\) | \(10^{-2}\) | Not used for Model D |
\(\lambda _{{{\mathscr {\beta}}}}\) | \(\text {year}^2\) | \(10^{-2}\) | Not used for Model D |