Spherical Coordinates: System of geometrical coordinates used in designating the location of places on the surface of the earth using Spherical Coordinates.
Spherical Coordinates sample data, Spherical Coordinates downloads, and Spherical Coordinates datasets available online.
Spherical Coordinates - for information about Spherical Coordinates, see Spherical Coordinates in the Global Cities databases. Contains Spherical Coordinates, officially recognized place names, physical locations, geographical coordinates, administrative regions, countries and additional information. Spherical Coordinates list includes places where people live and work such as cities, towns, and villages.
Latitude, which gives the location of a place north or south of the equator, is expressed by angular measurements ranging from 0° at the equator to 90° at the poles.
Longitude, the location of a place east or west of a north-south line called the prime meridian, is measured in angles ranging from 0° at the prime meridian to 180° at the International Date Line.
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FIPS – Federal Information Processing Standard
Under the Information Technology Management Reform Act (Public Law 104-106), the Secretary of Commerce approves standards and guidelines that are developed by the National Institute of Standards and Technology (NIST) for Federal computer systems. These standards and guidelines are issued by NIST as Federal Information Processing Standards (FIPS) for use government-wide. NIST develops FIPS when there are compelling Federal government requirements such as for security and interoperability and there are no acceptable industry standards or solutions.
Now you can provide your users with standardized lists of choices for entering data. For example, without a comprehensive list of cities, user-input location data quickly becomes a nightmare. Assuming your users make no spelling errors you can expect the user-provided location data to vary greatly. Just consider:
New York, New York USA
New York, NY USA
N.Y., N.Y. US
And the list goes on!
These are all "valid" entries which represent the same physical location, but from the database standpoint these are all separate and distinct locations. Using our World-wide Cities database this problem is eliminated! Users can be presented with a standard and complete version of any place name, thus producing a more reliable and meaningful dataset.
GPS Global Positioning System
The Space Segment, consists of 24 operational satellites in six circular orbits 20,200 km (10,900 NM) above the earth at an inclination angle of 55 degrees with a 12 hour period. The satellites are spaced in orbit so that at any time a minimum of 6 satellites will be in view to users anywhere in the world. The satellites continuously broadcast position and time data to users throughout the world.
The Control Segment consists of a master control station in Colorado Springs, with five monitor stations and three ground antennas located throughout the world. The monitor stations track all GPS satellites in view and collect ranging information from the satellite broadcasts. The monitor stations send the information