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Geodetic latitude and geocentric latitude have different definitions. Geodetic latitude is defined as the angle between the equatorial plane and the surface normal at a point on the ellipsoid, whereas geocentric latitude is defined as the angle between the equatorial plane and a radial line connecting the centre of the ellipsoid to a point on the surface (see figure).
They, together with the cluster of islands in Visayas in between them, represent the three principal regions of the archipelago that are identified by the three stars on the Philippine flag. The Philippines is broken up into many islands by the sea. This gives it the fifth longest coastline of 36,289 kilometers (22,549 mi) in the world.
"The Coast and Geodetic Survey in the Philippine Islands" (PDF). The Journal of the Coast and Geodetic Survey. 7: 4–12. Reprinted in Coast and Geodetic Survey Sesquicentennial Papers (PDF). Coast and Geodetic Survey. 1958. Frisby, E. R. (1921). Philippine Surveys by the United States Coast and Geodetic Survey (PDF) (unpublished manuscript ...
A geographic coordinate system (GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [1] It is the simplest, oldest and most widely used type of the various spatial reference systems that are in use, and forms the basis for most others.
A geodetic datum or geodetic system (also: geodetic reference datum, geodetic reference system, or geodetic reference frame, or terrestrial reference frame) is a global datum reference or reference frame for unambiguously representing the position of locations on Earth by means of either geodetic coordinates (and related vertical coordinates) or geocentric coordinates. [1]
The Philippines, [g] officially the Republic of the Philippines, [h] is an archipelagic country in Southeast Asia.In the western Pacific Ocean, it consists of 7,641 islands, with a total area of roughly 300,000 square kilometers, which are broadly categorized in three main geographical divisions from north to south: Luzon, Visayas, and Mindanao.
A coordinate system conversion is a conversion from one coordinate system to another, with both coordinate systems based on the same geodetic datum. Common conversion tasks include conversion between geodetic and earth-centered, earth-fixed ( ECEF ) coordinates and conversion from one type of map projection to another.
The list below is a collection of available official national projected Coordinate Reference Systems. Links to the relevant unique identification codes of the EPSG Geodetic Parameter Dataset , the most comprehensive collection Coordinate Reference Systems, are provided in the table.