| Primary satellite | Secondary satellite |
| Name | Cosmos 1538 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 14760 | 40218 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 Jul 03 13:18 | 2022 Jul 03 07:46 |
| Time of closest approach (UTC) | 2022 May 25 22:38:51.373 |
| Minimum distance | 62.130 km |
| Height difference | -2.604 km |
| Relative speed | 8.098 km/s |
| Angle between velocity vectors | 66° |
| Geographic position | 70.8°S, 134.6°E |
| Height | 798 km |
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