| Primary satellite | Secondary satellite |
| Name | Cosmos 1386 Rocket | S3M |
| Spacetrack catalog number | 13354 | 12508 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2025 Nov 13 06:00 | 2025 Nov 13 06:08 |
| Time of closest approach (UTC) | 2025 Oct 15 14:59:52.502 |
| Minimum distance | 5.618 km |
| Height difference | 5.613 km |
| Relative speed | 14.609 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 31.1°N, 163.9°E |
| Height | 959 km |
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