Table 1. The residual mean (M) and standard deviation (SD) for all data types in nT, where Sat. and Obs. stand for satellite and observatory, respectively. HL corresponds to high latitudes and SM to the SM coordinate system.
From: The second generation of the GFZ Reference Internal Magnetic Model: GRIMM-2
Data types | Camera mode | Number of data | First run | GRIMM-2 | |
|---|---|---|---|---|---|
| Â | Â | Â | SD | M | SD |
Sat. X (SM) | Dual | 568361 | 3.7 | 0.04 | 2.69 |
Sat. Y (SM) | Dual | 568361 | 3.9 | −0.43 | 3.15 |
Sat. X (HL) | Dual | 1100140 | 48.2 | 1.37 | 44.25 |
Sat. Y (HL) | Dual | 1100140 | 53.8 | 0.44 | 49.51 |
Sat. Z (HL) | Dual | 1100140 | 20.2 | −0.91 | 17.98 |
Sat. X (HL) | Single | 332643 | 62.8 | −6.05 | 59.81 |
Sat. Y (HL) | Single | 332643 | 73.3 | −0.35 | 69.81 |
Sat. Z (HL) | Single | 332643 | 26.7 | −1.51 | 24.64 |
Obs. X (SM) | — | 345446 | 3.3 | 0.06 | 3.32 |
Obs. Y (SM) | — | 345446 | 3.5 | 0.02 | 3.45 |
Obs. X (HL) | — | 102695 | 19.7 | −1.38 | 19.13 |
Obs. Y (HL) | — | 102695 | 11.3 | 0.05 | 11.14 |
Obs. Z (HL) | — | 102695 | 17.3 | 0.22 | 16.98 |