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Map Radius Calculator. You can draw multiple circles, distances, areas or elevations, import/export data save and edit them later with a larger map! Draw a Radius around a map location. Draw a radius circle around a location in Google Maps to show a distance from that point in all directions.
This online calculator calculates Earth radius at given latitude using WGS 84 reference ellipsoid
Semicircle Calculator. Calculations at a semicircle. Radius and diameter refer to the original circle, which was bisected through its center. Enter one value and choose the number of decimal places. Then click Calculate.
Apogee Distance Calculator. Perigee refers to the point on the orbit of a satellite that is at the nearest distance from the center of the Earth. The perigee distance is computed from the values of eccentricity ‘e’ and the semi-major axis ‘a’ of an elliptical satellite orbit.
You input this value into the radius field, and the calculator automatically calculates the diameter, arc length, perimeter, and area based on this radius. You can then review and utilize the calculated values as needed for your specific application.
With this tool, you can know the radius of a circle anywhere on Google Maps. By simply clicking on a single point and extending or moving the circle to change the radius on the Map. Calculate elevation on Map. Find the elevation above sea level or the elevation of a location or path drawn.
Assuming known semi major, a, and semi minor, b, radiuses are given. How do you compute the radius at a given geodetic latitude? I need some sort of expert confirmation (derivation, link to derivation, confirmation from expert, explanation, etc).