| Primary satellite | Secondary satellite |
| Name | Cosmos 2142 Rocket | SL-16 Debris |
| Spacetrack catalog number | 21231 | 26074 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:58 | 2024 Dec 22 18:04 |
| Time of closest approach (UTC) | 2024 Dec 28 02:59:17.398 |
| Minimum distance | 4.133 km |
| Height difference | 3.576 km |
| Relative speed | 1.642 km/s |
| Angle between velocity vectors | 13° |
| Geographic position | 19.3°S, 88.9°W |
| Height | 989 km |
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