| Primary satellite | Secondary satellite |
| Name | Cosmos 2285 Rocket | deb Kosmos-1275 |
| Spacetrack catalog number | 23190 | 12665 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 16 18:33 | 2021 Apr 16 09:27 |
| Time of closest approach (UTC) | 2021 Mar 01 10:14:49.270 |
| Minimum distance | 7.193 km |
| Height difference | -1.716 km |
| Relative speed | 14.266 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 34.7°N, 124.5°W |
| Height | 990 km |
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