This command teleports your character to the specified X and Y coordinates.
centeronworld [world name] [x] [y]
|World Name||The name of the world to teleport in. The outdoor part of Skyrim has the name 'Tamriel' (without quotes).|
|X||The X coordinate to teleport your character to.|
|Y||The Y coordinate to teleport your character to.|
CenterOnWorld tamriel 5 7
This console command would teleport your character to the X coordinate 5 and the Y coordinate 7 in the Tamriel world.
The COW command is the same as the CenterOnWorld command - COW is an alias (shorter version).