Forecast of the auroral oval boundaries for the next hour
www.spaceweather.ru
Space Research Institute RAS, Moscow
iki.cosmos.ru

Forecast for:
UT  11:00-12:00, 09.12.2025
MSK 14:00-15:00, 09.12.2025

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 73 73 73 74 74 74 74 74 74 75 75 75 75 75 74 73 73 73 73 73 73 73 73

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: 63 63 63 64 65 66 67 68 69 70 71 72 73 73 73 72 71 70 69 68 67 66 64 64

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: 60 60 60 61 61 62 62 62 62 63 64 65 66 67 68 68 67 67 66 65 64 62 61 60

Current AL index: -237
AL index is estimated on the basis of real-time DSCOVR magnetic field and solar wind speed

Updated at:
UT  10:05, 09.12.2025
MSK 13:05, 09.12.2025

Questions, comments and suggestions are welcomed at
Anatoli Petrukovich,   a.petrukovich@cosmos.ru
Tatiana Podladchikova, t.podladchikova@skoltech.ru