| Primary satellite | Secondary satellite |
| Name | Transit 2A | COSMOS 2251 DEB |
| Spacetrack catalog number | 45 | 37978 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Jun 04 02:42 | 2023 Jun 01 17:44 |
| Time of closest approach (UTC) | 2023 Mar 23 15:28:06.496 |
| Minimum distance | 2675.823 km |
| Height difference | 6.023 km |
| Relative speed | 7.418 km/s |
| Angle between velocity vectors | 58° |
| Geographic position | 62.6°S, 132.0°E |
| Height | 622 km |
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