ArcGIS Pro 2.5: What is the scientific geodetic term for central meridian and latitude of origin point and its false easting and false northing?

Question

For example, for the “Palestine 1923 Palestine Grid” coordinate system:

Long. (Central Meridian) = 35.21208055555556

Lat. (Latitude of Origin) = 31.73409694444445

X (False Easting) = 170251.555

Y (False Northing) = 126867.909

What is the scientific geodetic term for this point instead of saying all the time it is “central meridian and latitude of origin”

DanPatterson · Answer

the "origin" if you want.  But you would still have to provide those two values, since in many disciplines,  the "origin" is taken to refer to (0, 0) without any extra modifiers.

JamalNUMAN · Answer

Thanks Dan.

My point here is to check if there is a single term that indicates for central meridian and latitude of origin but not to understand what does they mean.

DanPatterson · Answer

they are the proper terms allthough central meridian is also referred to as the longitude of origin

Some references

https://epsg.io/28191

Palestine grid - Wikipedia

Transformation between GNSS coordinates and Palestinian coordinatessystem in West Bank

Coordinate systems, projections, and transformations—Properties of maps | Documentation

and

https://www.esri.com/training/catalog/57630434851d31e02a43ef5a/working-with-coordinate-systems-in-arcgis/