| Primary satellite | Secondary satellite |
| Name | Terra | COSMOS 2251 DEB |
| Spacetrack catalog number | 25994 | 34634 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 18:51 | 2025 Nov 16 19:14 |
| Time of closest approach (UTC) | 2025 Oct 12 01:43:11.177 |
| Minimum distance | 8.215 km |
| Height difference | -1.855 km |
| Relative speed | 14.951 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 41.3°S, 60.6°W |
| Height | 705 km |
|