| Primary satellite | Secondary satellite |
| Name | HJ-1B | IRIDIUM 33 DEB |
| Spacetrack catalog number | 33321 | 34775 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:01 | 2024 Dec 22 13:09 |
| Time of closest approach (UTC) | 2024 Dec 29 18:16:04.724 |
| Minimum distance | 0.311 km |
| Height difference | 0.107 km |
| Relative speed | 15.055 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 43.9°S, 166.7°E |
| Height | 642 km |
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