| Primary satellite | Secondary satellite |
| Name | Cosmos 1400 Rocket | STARLINK-1181 |
| Spacetrack catalog number | 13403 | 45086 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Mar 09 02:06 | 2021 Mar 08 18:32 |
| Time of closest approach (UTC) | 2021 Jan 16 12:12:54.952 |
| Minimum distance | 84.734 km |
| Height difference | 3.244 km |
| Relative speed | 13.939 km/s |
| Angle between velocity vectors | 133° |
| Geographic position | 9.2°N, 89.2°W |
| Height | 547 km |
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