| Primary satellite | Secondary satellite |
| Name | Cosmos 1814 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 17304 | 35987 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 10:01 | 2024 Dec 18 12:35 |
| Time of closest approach (UTC) | 2024 Dec 24 13:36:03.683 |
| Minimum distance | 1.981 km |
| Height difference | 1.828 km |
| Relative speed | 14.331 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 6.5°S, 36.9°W |
| Height | 778 km |
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