| Primary satellite | Secondary satellite |
| Name | Atlas Centaur 2 | COSMOS 2251 DEB |
| Spacetrack catalog number | 694 | 38212 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 22 03:26 | 2023 Sep 17 08:05 |
| Time of closest approach (UTC) | 2023 Jun 15 16:15:28.529 |
| Minimum distance | 1315.696 km |
| Height difference | -43.280 km |
| Relative speed | 8.009 km/s |
| Angle between velocity vectors | 65° |
| Geographic position | 28.6°S, 84.9°E |
| Height | 779 km |
|