| Primary satellite | Secondary satellite |
| Name | METEOR M2 | COSMOS 2143 DEB |
| Spacetrack catalog number | 40069 | 57726 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 18 21:59 | 2026 Jan 18 20:29 |
| Time of closest approach (UTC) | 2025 Dec 05 22:32:09.245 |
| Minimum distance | 183.565 km |
| Height difference | -3.584 km |
| Relative speed | 14.662 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 79.3°N, 136.6°E |
| Height | 838 km |
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