| Navaid Facility ID: | ATY |
| Official Navaid Facility ID: | ATY |
| Navaid Facility Type: | TACAN |
| Navaid Name: | Watertown |
| City: | WATERTOWN |
| State: | SOUTH DAKOTA |
| FAA Region: | |
| Latitude: | 44-58-46.871N (44.9797) |
| Longitude: | 097-08-30.201W (-97.1417) |
| Lat/Long Survey Accuracy: | NOS |
| Owner: | FEDERAL AVIATION ADMIN |
| Operator: | FEDERAL AVIATION ADMIN |
| Common System Usage: | Yes |
| Public Use: | Yes |
| Navaid Class: | L-TACAN |
| Hours of Operation: | 24 |
| Magnetic Variance: | 2.9 E as of 1/23/2024 |
| ARTCC High Altitude ID (Name): | ZMP (MINNEAPOLIS) |
| ARTCC Low Altitude ID (Name): | ZMP (MINNEAPOLIS) |
| Navaid ID: | ATY |
| Navaid Facility Type: | |
| Air or Ground: | Ground |
| Bearing of Checkpoint: | 184 |
| Altitude: | |
| Airport ID: | ATY |
| State: | SD |
| Description: | 3.8 NM ON SE CORNER OF TERMINAL RAMP. |
