| Primary satellite | Secondary satellite |
| Name | Cosmos 1271 Rocket | OBJECT AU |
| Spacetrack catalog number | 12465 | 61777 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 19 07:32 | 2026 Jan 19 06:19 |
| Time of closest approach (UTC) | 2025 Dec 13 13:57:10.403 |
| Minimum distance | 19.505 km |
| Height difference | 3.078 km |
| Relative speed | 15.264 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 54.0°S, 66.7°W |
| Height | 465 km |
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