The Green Pine radar or ELM-280 operates at L band in the range 500 MHz to 1,000 MHz, or 1,000 MHz to 2,000 MHz. It works in search, detection, tracking, and missile guidance modes simultaneously. It is capable of detecting targets at ranges of up to about 500 km (310 mi) and is able to track more than 30 targets at speeds over 3,000 m/s. The radar illuminates the target and guides the Arrow missile to within 4 m of the target.