AnsweredAssumed Answered

Elevations off by -0.0000235

Question asked by akuch21 on Apr 20, 2016
Latest reply on Jul 12, 2016 by MKennedy-esristaff

This is a weird one. I'm working on utility pipes, getting elevations and structure tops. I have found that when calculating geometry, or sometimes transferring numbers with the field calculator, the elevation number I expect is off by exactly -0.0000235 feet.

 

I'm using Virginia State Grid North for the XY coordinates, and NAVD_1988 for the z values. What I'm doing doesn't require a precision of more than 2 decimal places. But I still wonder why this comes up.

 

Is there some mathematical significance to this number? Have I found the question to life, the universe, and everything?

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