| Primary satellite | Secondary satellite |
| Name | Terra | COSMOS 2251 DEB |
| Spacetrack catalog number | 25994 | 33936 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 18:51 | 2025 Nov 16 11:01 |
| Time of closest approach (UTC) | 2025 Oct 13 08:07:29.794 |
| Minimum distance | 36.642 km |
| Height difference | 0.533 km |
| Relative speed | 14.957 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 42.6°N, 23.6°E |
| Height | 698 km |
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