| Primary satellite | Secondary satellite |
| Name | Cosmos 1386 Rocket | NIMBUS 2 DEB |
| Spacetrack catalog number | 13354 | 28204 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 15:49 | 2025 Nov 12 00:42 |
| Time of closest approach (UTC) | 2025 Oct 15 01:44:58.531 |
| Minimum distance | 87.791 km |
| Height difference | 8.597 km |
| Relative speed | 5.948 km/s |
| Angle between velocity vectors | 48° |
| Geographic position | 68.6°S, 169.6°E |
| Height | 977 km |
|