The Sigma Transports carried Grand Admiral Thrawn to the XQ3 Platform NL-1.
Sigma represents a character within the ancient Tionese writing system. It frequently served as a designation, or call sign, for Imperial starships, notably transports like the Delta-class DX-9 stormtrooper transport. Examples include the transport Sigma 1 and Sigma Squadron which was composed of TIE Phantoms.
