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Table 3 Mean and standard deviation of residuals to CHAOS-7 for GF1 and GF2 for geomagnetic quiet times and for a single quiet day, 30 January 2019

From: Observing Earth’s magnetic environment with the GRACE-FO mission

Parameter Whole period Single day
Mean (nT) Std (nT) Mean (nT) Std (nT)
x y z x y z x y z x y z
GF1
 \({\Delta B_{\text{NEC}}}\) 0.0 0.0 0.0 7.8 7.9 9.5 − 0.2 − 0.6 − 0.6 4.3 5.2 2.9
 \({\Delta B_{\text{RAW}}}\) − 323.1 − 551.5 78.3 95.7 323.1 131.8 − 302.4 − 561.5 85.1 97.3 321.5 130.5
GF2
 \({\Delta B_{\text{NEC}}}\) 0.0 0.0 0.0 7.1 8.4 7.7 0.4 − 2.0 1.2 3.9 8.0 3.6
 \({\Delta B_{\text{RAW}}}\) 1357.3 351.7 − 145.9 285.6 204.5 116.5 1331.5 380.1 − 173.1 295.3 206.8 116.6
  1. \(B_{\text{NEC}}\) represents residuals for calibrated data and \(B_{\text{RAW}}\) for data before calibration