| Primary satellite | Secondary satellite |
| Name | Cosmos 1707 Rocket | CSL-04 DEB |
| Spacetrack catalog number | 16327 | 26416 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 11 07:32 | 2021 Apr 11 07:35 |
| Time of closest approach (UTC) | 2021 Mar 01 18:01:19.477 |
| Minimum distance | 2.769 km |
| Height difference | 1.840 km |
| Relative speed | 15.100 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 68.6°S, 36.2°E |
| Height | 634 km |
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