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Table 2
Magnetic observatories used in the study. The fifth column refers to the interval in which the magnetic latitude is included according to 2000–2015 IGRF models during the period analysed.
| Observatory name | IAGA code | Geographic latitude (°) | Geographic longitude (°) | Magnetic latitude (°) | UT–MLT (h) |
|---|---|---|---|---|---|
| San Pablo–Toledo | SPT | 39.55 | 355.65 | 42.5 ± 0.5 | −0.29 |
| Surlari | SUA | 44.68 | 26.55 | 42.0 ± 0.5 | +1.77 |
| Irkutsk | IRT | 52.27 | 104.45 | 42.0 ± 0.5 | +6.96 |
| Memambetsu | MMB | 43.91 | 144.19 | 35.5 ± 0.5 | +9.61 |
| Fresno | FRN | 37.09 | 240.28 | 43.0 ± 0.5 | −7.98 |
| Stennis Space Center | BSL | 30.35 | 270.36 | 39.5 ± 0.5 | −5.98 |
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