| Primary satellite | Secondary satellite |
| Name | Cosmos 1538 Rocket | IRIDIUM 33 DEB |
| Spacetrack catalog number | 14760 | 36080 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 Jul 03 21:39 | 2022 Jun 28 07:15 |
| Time of closest approach (UTC) | 2022 May 28 10:08:54.618 |
| Minimum distance | 11.316 km |
| Height difference | 1.196 km |
| Relative speed | 14.494 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 46.0°N, 172.8°E |
| Height | 767 km |
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