Grid 091
From Memory Alpha, the free Star Trek reference
Grid 091 is the Borg spatial designation for a region of space in the Delta Quadrant.
In 2377, the Borg Queen lost contact with one drone aboard Sphere 878 in Grid 091 who had the mutation found within those drones capable of entering Unimatrix Zero. (VOY: "Unimatrix Zero, Part II")
