| Primary satellite | Secondary satellite |
| Name | Cosmos 1869 | LilacSat-2 |
| Spacetrack catalog number | 18214 | 40908 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Sep 09 11:01 | 2024 Sep 09 18:29 |
| Time of closest approach (UTC) | 2024 Aug 14 10:25:09.615 |
| Minimum distance | 5.059 km |
| Height difference | 2.720 km |
| Relative speed | 15.213 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 73.7°S, 143.6°E |
| Height | 516 km |
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