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Table 3 Estimated values for selected model parameters for all three Swarm satellites

From: In-flight scalar calibration and characterisation of the Swarm magnetometry package

Sat Sensitivity/sensor temperature, \(s_{\mathrm{Tsensor}}\) (\(10^{-6}/{^\circ }\hbox {C}\)) Sensitivity/\(\beta\) angle, \(s_{\beta }\) (\(10^{-6}/{\deg }\)) Non-orthogonalities, \(u_{1,2,3}\) (arc-seconds)
  Pre-flight Adjustment Pre-flight Adjustment Pre-flight Adjustment
Alpha 28.5 0.616 −0.125 102.386 −0.601
28.8 0.780 0 217.403 −3.960
28.3 0.945 0.012 −179.318 0.149
Bravo 28.3 1.168 −0.132 350.880 −0.558
29.0 1.385 −0.003 62.432 −2.453
28.8 1.602 −0.198 −147.060 1.608
Charlie 27.7 1.521 −0.090 139.140 0.094
29.1 1.300 −0.038 −248.890 1.042
28.4 1.076 −0.167 −109.960 0.805
  1. The nT-equivalents of the adjustments in a \(50{,}000~\hbox {nT}\) ambient field are: \(s_{\mathrm{Tsensor}} = 10^{-6}/{^\circ }\hbox {C} \sim 1.25~\hbox {nT}\) (\(25^{\circ }\hbox {C}\) temperature swing), \(s_{\beta } = 0.1 \times 10^{-6}/{\deg } \sim {\pm }0.45~\hbox {nT}\) (\({\pm }90^\circ\)), \(u = 1~\mathrm {arc-second} \sim 0.242~\hbox {nT}\)