| Primary satellite | Secondary satellite |
| Name | Cosmos 676 Rocket | IRIDIUM 33 DEB |
| Spacetrack catalog number | 7434 | 39783 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 28 14:33 | 2023 Sep 28 18:49 |
| Time of closest approach (UTC) | 2023 Jun 16 09:20:08.720 |
| Minimum distance | 1518.723 km |
| Height difference | 25.175 km |
| Relative speed | 14.737 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 48.3°S, 87.8°E |
| Height | 782 km |
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