| Primary satellite | Secondary satellite |
| Name | Cosmos 1892 | LEMUR 2 ZUPANSKI |
| Spacetrack catalog number | 18421 | 43695 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Feb 25 04:29 | 2021 Feb 25 13:00 |
| Time of closest approach (UTC) | 2021 Jan 22 23:11:26.467 |
| Minimum distance | 219.392 km |
| Height difference | -2.569 km |
| Relative speed | 13.356 km/s |
| Angle between velocity vectors | 123° |
| Geographic position | 75.3°N, 24.2°W |
| Height | 521 km |
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