| Primary satellite | Secondary satellite |
| Name | IRIDIUM 33 DEB | Cosmos 1023 |
| Spacetrack catalog number | 33775 | 10961 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:00 | 2024 Dec 22 11:06 |
| Time of closest approach (UTC) | 2024 Dec 27 20:49:10.594 |
| Minimum distance | 4.511 km |
| Height difference | 2.967 km |
| Relative speed | 14.349 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 51.8°S, 144.9°E |
| Height | 776 km |
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