| Primary satellite | Secondary satellite |
| Name | CZ-2D DEB | Cosmos 990 |
| Spacetrack catalog number | 44607 | 10676 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 05:45 | 2024 Dec 22 16:09 |
| Time of closest approach (UTC) | 2024 Dec 25 00:31:29.420 |
| Minimum distance | 4.968 km |
| Height difference | 1.202 km |
| Relative speed | 11.761 km/s |
| Angle between velocity vectors | 103° |
| Geographic position | 73.4°S, 147.4°W |
| Height | 795 km |
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