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Satellite Look Angle Calculator

Point a dish at a geostationary satellite: the elevation angle above the horizon, the true azimuth and compass bearing, the slant range and the ground distance to the satellite's sub-point.

degrees, −90 to 90 (north positive)
degrees, −180 to 180 (east positive)
degrees, −180 to 180 — the geostationary slot, e.g. 28.2 for 28.2° E

A geostationary satellite sits over the equator at 35,786 km altitude, so from your site it appears at a fixed point in the sky. The elevation is the angle above the horizon to aim the dish; the azimuth is the true bearing to swing it to, clockwise from north — add the local magnetic declination if you are using a compass. A negative elevation means the satellite is below the horizon and out of view. The model treats the Earth as a sphere of radius 6,378.137 km with the satellite at 42,164.17 km from the centre, which can shift elevation by up to about 0.2° from an ellipsoidal calculation at high latitude; terrain, buildings, trees, the satellite footprint and rain can still block a link that this geometry says is visible. Everything runs locally in your browser with no storage, uploads or network access.