Poleward boundary of the auroral oval
Magnetic local time:           00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Geomagnetic latitude, degrees: 72 72 73 74 74 75 74 75 75 75 76 77 78 78 78 77 77 76 76 75 74 73 72 72

Equatorward boundary of the auroral oval
Magnetic local time:           00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Geomagnetic latitude, degrees: 70 70 70 70 70 71 71 72 73 74 75 76 76 76 76 76 75 74 73 72 71 71 70 70

Equatorward boundary of the diffuse aurora
Magnetic local time:           00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Geomagnetic latitude, degrees: 66 66 66 66 66 67 68 68 69 69 69 69 69 70 70 71 71 71 71 70 69 69 68 67

Current AL index: -17