| Primary satellite | Secondary satellite |
| Name | Explorer 7 | COSMOS 2251 DEB |
| Spacetrack catalog number | 22 | 35071 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Mar 26 21:58 | 2023 Mar 24 03:15 |
| Time of closest approach (UTC) | 2023 Feb 02 12:01:34.247 |
| Minimum distance | 2133.535 km |
| Height difference | -2.744 km |
| Relative speed | 13.194 km/s |
| Angle between velocity vectors | 123° |
| Geographic position | 7.3°S, 143.6°E |
| Height | 645 km |
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