From: A comprehensive model of Earth’s magnetic field determined from 4 years of Swarm satellite observations
Iteration k
\(\left| {\varvec{\Delta x}_k}\right| _2\) excluding M/I
\(\left| {\varvec{\Delta x}_k}\right| _2\)
0
4348.027
8351.771
1
135.642
3230.750
2
6.669
1556.125
3
1.997
642.987