K-Indices for Tromso 12 oct. 2025 5554 4565 13 oct. 2025 6654 3366 14 oct. 2025 5432 2224 15 oct. 2025 4432 2214 16 oct. 2025 2110 0144 17 oct. 2025 2212 2323 18 oct. 2025 4443 xxxx