| Primary satellite | Secondary satellite |
| Name | AO-73 | COSMOS 2251 DEB |
| Spacetrack catalog number | 39444 | 36553 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jun 04 11:22 | 2023 Jun 04 14:14 |
| Time of closest approach (UTC) | 2023 Mar 24 19:22:49.402 |
| Minimum distance | 7905.253 km |
| Height difference | 27.602 km |
| Relative speed | 14.472 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 12.4°N, 119.9°E |
| Height | 578 km |
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