| Identifier: | OPECU |
| NAS ID: | OPECU |
| Name: | OPECU |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | ILLINOIS |
| ICAO Region: | K5 |
| Latitude: | 41-48-29.790N (41.808300) |
| Longitude: | 087-43-20.710W (-87.722400) |
| Magnetic Variance: | 4.1 W as of 9/30/2025 |
| High ARTCC Area: | ZAU |
| Low ARTCC Area: | ZAU |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| IAP |