| Primary satellite | Secondary satellite |
| Name | Cosmos 1140 Rocket | IRIDIUM 33 DEB |
| Spacetrack catalog number | 11574 | 38474 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 28 13:40 | 2023 Sep 22 23:40 |
| Time of closest approach (UTC) | 2023 Jun 09 05:50:09.911 |
| Minimum distance | 698.446 km |
| Height difference | 1.740 km |
| Relative speed | 11.453 km/s |
| Angle between velocity vectors | 100° |
| Geographic position | 70.8°N, 141.9°W |
| Height | 775 km |
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