| Primary satellite | Secondary satellite |
| Name | Cosmos 1812 | FLOCK 4S 29 |
| Spacetrack catalog number | 17295 | 47520 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 Jun 30 21:01 | 2022 Jun 30 17:12 |
| Time of closest approach (UTC) | 2022 May 25 19:47:29.856 |
| Minimum distance | 406.002 km |
| Height difference | 2.961 km |
| Relative speed | 5.201 km/s |
| Angle between velocity vectors | 40° |
| Geographic position | 69.4°N, 7.9°E |
| Height | 526 km |
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