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2. Geographic coordinate conversion - Wikipedia

   en.wikipedia.org/wiki/Geographic_coordinate...

   The formulas involved can be complex and in some cases, such as in the ECEF to geodetic conversion above, the conversion has no closed-form solution and approximate methods must be used. References such as the DMA Technical Manual 8358.1 [ 15 ] and the USGS paper Map Projections: A Working Manual [ 16 ] contain formulas for conversion of map ...

3. Template:CH1903-WGS84 - Wikipedia

   en.wikipedia.org/wiki/Template:CH1903-WGS84

   This template is designed to convert a set of Swiss coordinates into either the corresponding WGS84 decimal latitude or longitude. It is intended to facilitate the usage of geodata (see {}) in articles about subjects for which only Swiss coordinates are readily available. The template should always be substituted.

4. Well-known text representation of coordinate reference systems

   en.wikipedia.org/wiki/Well-known_text...

   A WKT format is defined to describe the operation methods and parameters used to convert or transform coordinates between two different coordinate reference systems. The WKT 1 and WKT 2 formats are incompatible regarding coordinate operations, because of differences in the modelling. [13]

5. World Geodetic System - Wikipedia

   en.wikipedia.org/wiki/World_Geodetic_System

   The World Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS.The current version, WGS 84, defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum, and also describes the associated Earth Gravitational Model (EGM) and World Magnetic Model (WMM).

6. International Terrestrial Reference System and Frame

   en.wikipedia.org/wiki/International_Terrestrial...

   The difference between the latest as of 2006 WGS 84 (frame realisation G1150) and the latest ITRF2000 is only a few centimeters and RMS difference of one centimeter per component. [1] The ITRS and ITRF solutions are maintained by the International Earth Rotation and Reference Systems Service . Practical navigation systems are in general ...

7. Manage AOL Calendar settings

   help.aol.com/articles/aol-calendar-settings-manage

   A calendar is only as good as the info it displays. Personalize the time zone, default view, and hours you're typically available on your calendar. 1. Sign in to AOL Mail. 2. Under your username click Options | Mail Settings. 3. Click Calendar. 4. Update your default view, time zone, or display settings. 5. Click Save Settings.

8. Geodetic datum - Wikipedia

   en.wikipedia.org/wiki/Geodetic_datum

   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]

9. Geo (microformat) - Wikipedia

   en.wikipedia.org/wiki/Geo_(microformat)

   Coordinates are expected in angular units of degrees and geodetic datum WGS84. [1] Although termed a "draft" specification, the format is a de facto standard , stable and in widespread use; [ 2 ] not least as a sub-set of the published hCalendar [ 3 ] and hCard [ 4 ] microformat specifications, neither of which is still a draft.