Calculate Correct Magnetic Coords and Kp

Latitude:   e.g. 61.230N or 32.052S
Longitude:   e.g. 51.023W or 42.301E

Notes about GeoToMag

Input Latitude and Longitude must be in the above example format. No value should be greater than 180 degrees and no negative numbers either.

You can obtain your latitude/longitude by going to Heavens Above and then return here. If Latitude is negative, it is South. If Longitude is negative, it's West.

After you submit the form you need to note your "AlertOverheadKpIndex" or "AlertHorizonKpIndex" depending on your preference.