Light Transport; Low Wing; 2 Turbojet Eng
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1
Situational Awareness; Time Pressure; Distraction
ATC Issue All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
ATC Equipment / Nav Facility / Buildings
I was working Local 2 which controls runway 26L. Aircraft X was on final for RWY26R. The weather was marginally VFR but cloudy and rainy. I saw Aircraft X's data tag show up on the ASDE-X (Airport Surface Detection Equipment -X) as if he was lined up to land on taxiway Bravo instead of RWY26R. Taxiway Bravo is the center taxiway between RWY26R & RWY26L. I yelled 'GO AROUND' to the Local 1 controller without having a chance to say the reason; the call sign or where he was located. The Local 1 controller instantly issued the 'Go around' instructions although at that point; it was clear that Aircraft X was touching down on RWY26R. 1. I would recommend some sort of Tech ops intervention into the situation to help determine why it occurred. It's especially important for Tech-ops to look into the equipment and get it fixed. This is a top priority!!2 Other controllers indicated a similar event occurring to them with the aircraft tagged up and lined up as if to land on taxiway Bravo when instead they landed on the runway.
ATL Tower Controller reported a false ASDE-X alarm causing another controller to issue go around instructions to an aircraft that was touching down.