| Primary satellite | Secondary satellite |
| Name | ATLAS 3B R/B | COSMOS 2251 DEB |
| Spacetrack catalog number | 28538 | 35606 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2022 May 21 20:48 | 2022 May 25 08:10 |
| Time of closest approach (UTC) | 2022 Jan 30 12:11:09.276 |
| Minimum distance | 288.487 km |
| Height difference | 3.528 km |
| Relative speed | 9.884 km/s |
| Angle between velocity vectors | 86° |
| Geographic position | 59.0°N, 173.9°E |
| Height | 1152 km |
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