Israeli Cassini Soldner

Israeli Cassini Soldner (ICS), commonly known as the Old Israeli Grid (OIG; Hebrew: רשת ישראל הישנה Reshet Yisra'el Ha-Yeshana) is the old geographic coordinate system for Israel.

The name is derived from the Cassini Soldner projection it uses and the fact that it is optimized for Israel.

[citation needed] ICS has been mostly replaced by the new coordinate system Israeli Transverse Mercator (ITM), also known as the New Israeli Grid (NIG), but still referenced by older books and navigation software.

To avoid the existence of negative coordinates in the southern Negev, the False Northing of ICS was increased by 1000000.

An ICS coordinate is generally given as a pair of two numbers (excluding any digits behind a decimal point which may be used in very precise surveying).