| Primary satellite | Secondary satellite |
| Name | Cosmos 1538 Rocket | IRIDIUM 146 |
| Spacetrack catalog number | 14760 | 43254 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2022 Jul 02 13:53 | 2022 Jul 02 12:00 |
| Time of closest approach (UTC) | 2022 May 29 03:37:13.164 |
| Minimum distance | 36.394 km |
| Height difference | -1.572 km |
| Relative speed | 13.904 km/s |
| Angle between velocity vectors | 138° |
| Geographic position | 61.6°S, 74.1°E |
| Height | 802 km |
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