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Federal Base Network Surveys

The Federal Base Network (FBN) is a
nationwide network of permanently
monumented stations spaced 100
kilometers apart with higher density in crustal motion areas. The FBN provides spatial reference control that has some of the most precise accuracies available today.

The FBN is designed to provide the
following local accuracies
(with a 95% confidence level):
1 centimeter for latitudes and longitudes
2 centimeters for ellipsoidal heights
3 centimeters for orthometric heights
50 microgals for gravity
1 millimeter per year for crustal motion.

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Date Of Record Release 2009-09-21 16:06:18
Description The Federal Base Network (FBN) is a
nationwide network of permanently
monumented stations spaced 100
kilometers apart with higher density in crustal motion areas. The FBN provides spatial reference control that has some of the most precise accuracies available today.

The FBN is designed to provide the
following local accuracies
(with a 95% confidence level):
1 centimeter for latitudes and longitudes
2 centimeters for ellipsoidal heights
3 centimeters for orthometric heights
50 microgals for gravity
1 millimeter per year for crustal motion.
Classification
Resource Type
Format
Subject
Source National Geodetic Survey
Keyword Maps, Surveying
Selector Bates
Date Of Record Creation 2009-09-21 15:58:00
Education Level
Date Last Modified 2009-09-21 16:06:18
Language English
Date Record Checked: 2009-09-21 00:00:00 (W3C-DTF)

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