| Primary satellite | Secondary satellite |
| Name | Cosmos 2150 Rocket | CHUANG XIN 1-03 |
| Spacetrack catalog number | 21419 | 37930 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 20 04:34 | 2021 Jan 20 02:12 |
| Time of closest approach (UTC) | 2020 Dec 03 06:17:20.044 |
| Minimum distance | 3.820 km |
| Height difference | -3.207 km |
| Relative speed | 14.868 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 6.0°S, 23.1°W |
| Height | 800 km |
|