| Primary satellite | Secondary satellite |
| Name | Cosmos 1356 Rocket | STARLINK-1009 |
| Spacetrack catalog number | 13154 | 44715 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Mar 07 18:29 | 2021 Mar 07 20:04 |
| Time of closest approach (UTC) | 2021 Jan 21 04:01:02.754 |
| Minimum distance | 229.379 km |
| Height difference | 1.891 km |
| Relative speed | 12.813 km/s |
| Angle between velocity vectors | 115° |
| Geographic position | 39.7°S, 2.0°W |
| Height | 558 km |
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