Why is latitude inaccurate

What is the State Plane Coordinate System? Can GPS provide coordinates in these values? The State Plane Coordinate System SPCS , which is only used in the United States, is a plane coordinate system north-south and east-west lines are perpendicular in which each individual state has between one to six zones, depending on the state's size and shape.

What location coordinates datum does the Geographic Names Information System use? Board on Geographic Names website. Query the database for official geographic feature names, their location attributes, variant names, and other data. Display, print, and download up to 2, records from a query. Board on Geographic Names BGN , which maintains cooperative working relationships with state names authorities to standardize geographic names.

GNIS contains information about the official names for places, features, and Filter Total Items: 1. Example The decimal degree representation of the location of the United States Capitol is " Categories : Cartography stubs Geodesy.

Navigation menu Personal tools Create account Log in. Namespaces Page Discussion. Views Read View source View history. Need Help Contact us About Wiki. GIS Online help. Skyhook generates user Personas by mapping location samples to real-world venues. In doing so, we make use of additional data sets that come with location logs our customers submit.

Any fewer decimal places, and a user could be down the street from a venue, somewhere else in the same city, or in another country altogether. Hint, it's called horizontalAccuracy. How might you check for stale location readings? Wildly inaccurate ones? Try to code it yourself, and if you can't get it working, edit your question with the code you came up with and we'll help you debug it.

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