Coordinates and Datums

Coordinates and Datums

Convert between defined coordinate systems

NGS Coordinate Conversion and Transformation Tool (NCAT)

Example use cases:

• Converting degrees-minutes-seconds to decimal degrees
• lat/long to state plane
• Ellipsoid height to orthometric height (using multi-point conversion mode only)

Transform positions between reference frames and/or dates

NGS Horizontal Time Dependent Positioning (HTDP)

Example use cases:

• ITRF14 (current date) to NAD83 2011 (epoch 2010.00)
• NAD83 2011 (epoch 2017.5) to NAD83 2011 (epoch 2010.00)