X Y Data in Attribute Table Questions

Question

I have 40k points the attribute table has multiple x and y fields all have different numerics.  None of them seem to match any coordinate system.

Can someone explain the format of these columns

Projected Coordinate System:    NAD_1983_StatePlane_Arizona_Central_FIPS_0202_Feet_Intl

Projection:          Transverse_Mercator

False_Easting:   700000.00000000

False_Northing: 0.00000000

Central_Meridian:           -111.91666667

Scale_Factor:     0.99990000

Latitude_Of_Origin:        31.00000000

Linear Unit:         Foot

thanks

LGalyen · Answer

Melita  thanks, nonsensical is a perfect word to describe those numbers!!!    I spent several hours of mental work trying to understand them.

DanPatterson_Retired · Answer

1/100th of a foot? now I have heard of everything

MelitaKennedy · Answer

Try mapping the points using the XADJ and YADJ fields and the given coordinate system: NAD_1983_StatePlane_Arizona_Central_FIPS_0202_Feet_Intl. The false easting (x value at center of zone) of the coordinate system is 700000. The XADJ field has values around 700k. I think the XCOORD and YCOORD fields have values in 100th of a foot. This is sometimes used in surveying or engineering.

I wouldn't trust the EVENT_X or EVENT_Y fields. The EVENT_Y field values are nonsensical.

Melita