| Primary satellite | Secondary satellite |
| Name | Cosmos 1898 Rocket | IRIDIUM 140 |
| Spacetrack catalog number | 18586 | 43252 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2022 Jul 06 13:43 | 2022 Jul 06 12:12 |
| Time of closest approach (UTC) | 2022 Jun 01 21:28:08.228 |
| Minimum distance | 37.042 km |
| Height difference | 3.312 km |
| Relative speed | 2.313 km/s |
| Angle between velocity vectors | 18° |
| Geographic position | 45.3°S, 28.7°W |
| Height | 793 km |
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