| Primary satellite | Secondary satellite |
| Name | Cosmos 1331 Rocket | CZ-4 DEB |
| Spacetrack catalog number | 13028 | 35322 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 04 10:09 | 2021 Mar 04 17:14 |
| Time of closest approach (UTC) | 2021 Jan 21 21:13:52.503 |
| Minimum distance | 44.177 km |
| Height difference | -1.130 km |
| Relative speed | 13.447 km/s |
| Angle between velocity vectors | 128° |
| Geographic position | 74.1°S, 47.3°W |
| Height | 778 km |
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