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Table 2 List of three coefficients for the second-order fitted curve and coefficients of determination of the second-order fitted curve obtained at six geomagnetic stations

From: Long-term variation in the upper atmosphere as seen in the geomagnetic solar quiet daily variation

Station name Coefficient c Coefficient d Coefficient e Coefficient of determination
Addis Ababa −9.205 × 10−4 ± 2.654 × 10−4 7.458 × 10−1 ± 7.693 × 10−2 40.219 ± 4.96 0.848
Guam −5.699 × 10−4 ± 1.541 × 10−4 4.360 × 10−1 ± 4.428 × 10−1 27.612 ± 2.83 0.840
Kakioka −3.430 × 10−4 ± 9.720 × 10−5 2.045 × 10−1 ± 2.869 × 10−2 19.763 ± 1.893 0.598
San Juan −3.056 × 10−4 ± 9.509 × 10−5 1.850 × 10−1 ± 2.807 × 10−2 20.711 ± 1.848 0.580
Chambon-La-Foret −2.782 × 10−4 ± 1.361 × 10−4 2.018 × 10−1 ± 4.015 × 10−2 22.161 ± 2.634 0.540
Niemegk −4.647 × 10−4 ± 1.413 × 10−4 2.638 × 10−1 ± 4.168 × 10−2 21.329 ± 2.738 0.544