| Primary satellite | Secondary satellite |
| Name | Cosmos 1386 Rocket | SL-16 DEB |
| Spacetrack catalog number | 13354 | 39726 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 15:49 | 2025 Nov 12 21:05 |
| Time of closest approach (UTC) | 2025 Oct 19 22:36:12.242 |
| Minimum distance | 5.273 km |
| Height difference | 4.688 km |
| Relative speed | 14.179 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 27.9°S, 137.1°W |
| Height | 997 km |
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