Earth, Planets and Space

Table 4 CM6 weighted residual statistics for Ørsted and SAC-C, where “QD” denotes Quasi-Dipole, “NS” denotes North–South along-track, “DF/SF” denotes scalar differences and sums, respectively, and “F” denotes scalar

From: CM6: a comprehensive geomagnetic field model derived from both CHAMP and Swarm satellite observations

Type			Ørsted			SAC-C
QD Lat.	Sun	Comp.	N	Mean	RMS	N	Mean	RMS
Low	Dark	F	169,861	− 0.45	2.34	32,726	− 1.62	3.19
Mid	Dark	F	751,943	0.82	2.08	229,702	0.47	2.93
High	Dark	F	427,860	1.14	3.95	128,067	0.91	4.36
Low	Light	NSDF	277,662	0.00	0.51	25,811	− 0.02	0.67
Low	Light	NSSF	277,662	3.52	8.05	25,811	4.60	9.53
Low	Dark	NSDF	251,673	0.00	0.38	25,357	− 0.01	0.52
Low	Dark	NSSF	251,673	− 1.00	5.20	25,357	− 3.10	6.46
Mid	Light	NSDF	1,376,911	0.00	0.51	181,785	0.00	1.27
Mid	Light	NSSF	1,376,911	0.56	5.69	181,785	1.00	6.98
Mid	Dark	NSDF	1,113,677	− 0.00	0.51	187,818	− 0.01	1.13
Mid	Dark	NSSF	1,113,677	1.56	4.42	187,818	1.04	5.87
High	Light	NSDF	1,195,430	0.00	1.44	187,259	0.01	1.58
High	Light	NSSF	1,195,430	− 2.72	10.61	187,259	− 3.05	11.88
High	Dark	NSDF	631,717	− 0.01	1.29	102,679	− 0.05	1.32
High	Dark	NSSF	631,717	2.07	8.74	102,679	1.81	8.75

Mean and RMS are in units of “nT”

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