Use of Closure Quantities within a single SKA-Low Station for Antenna Fault Detection

SKA-Low is an interferometric radio telescope whose elements are aperture array stations; the telescope is sited in Western Australia.Due to the remote location and distributed nature of SKA-Low, finding antenna faults and installation issues quickly and confidently is important.Closure quantities are a proven method for validating array correctness [1, 3], and have been used for finding ill-behaved antennas within the Hydrogen Reionisation Epoch Array by comparing closure phases of redundant triads of antennas [2].We use a method that performs statistical comparison of observed closure quantities with predicted closure quantities as generated by a global sky model in order to identify suspect antennas and diagnose build errors.