| Primary satellite | Secondary satellite |
| Name | STRAND 1 | Cosmos 1741 |
| Spacetrack catalog number | 39090 | 16681 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2021 Mar 01 09:54 | 2021 Mar 01 22:46 |
| Time of closest approach (UTC) | 2021 Jan 18 07:34:47.109 |
| Minimum distance | 6.782 km |
| Height difference | -3.558 km |
| Relative speed | 14.734 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 64.3°N, 25.5°W |
| Height | 783 km |
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