| Primary satellite | Secondary satellite |
| Name | Cosmos 1125 Rocket | METEOR 2-6 DEB |
| Spacetrack catalog number | 11511 | 28987 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 20 12:05 | 2021 Jan 08 01:00 |
| Time of closest approach (UTC) | 2020 Dec 05 19:26:20.023 |
| Minimum distance | 34.516 km |
| Height difference | 1.775 km |
| Relative speed | 2.120 km/s |
| Angle between velocity vectors | 16° |
| Geographic position | 61.5°S, 9.9°W |
| Height | 803 km |
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