| Primary satellite | Secondary satellite |
| Name | Tiangong | COSMOS 1408 DEB |
| Spacetrack catalog number | 48274 | 50903 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Feb 02 05:33 | 2023 Jan 18 09:03 |
| Time of closest approach (UTC) | 2022 Dec 02 05:58:34.317 |
| Minimum distance | 2378.198 km |
| Height difference | -38.723 km |
| Relative speed | 13.840 km/s |
| Angle between velocity vectors | 128° |
| Geographic position | 20.0°N, 139.2°E |
| Height | 382 km |
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