| Primary satellite | Secondary satellite |
| Name | LEMUR 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 40044 | 38055 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2022 May 23 12:24 | 2022 May 23 11:54 |
| Time of closest approach (UTC) | 2022 Feb 02 05:52:18.603 |
| Minimum distance | 18.128 km |
| Height difference | -0.627 km |
| Relative speed | 15.023 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 28.0°S, 12.7°E |
| Height | 662 km |
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