| Primary satellite | Secondary satellite |
| Name | Terra | COSMOS 2251 DEB |
| Spacetrack catalog number | 25994 | 34046 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 18:51 | 2025 Nov 16 07:41 |
| Time of closest approach (UTC) | 2025 Oct 11 15:42:45.436 |
| Minimum distance | 25.557 km |
| Height difference | 4.545 km |
| Relative speed | 14.415 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 71.5°S, 107.0°E |
| Height | 715 km |
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