| Primary satellite | Secondary satellite |
| Name | NOSS 3-1 (C) | COSMOS 2251 DEB |
| Spacetrack catalog number | 26907 | 34675 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2022 May 20 21:37 | 2022 May 25 22:18 |
| Time of closest approach (UTC) | 2022 Jan 19 07:24:00.567 |
| Minimum distance | 945.029 km |
| Height difference | 24.027 km |
| Relative speed | 14.171 km/s |
| Angle between velocity vectors | 138° |
| Geographic position | 3.5°N, 172.3°W |
| Height | 707 km |
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