| Primary satellite | Secondary satellite |
| Name | STRAND 1 | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 39090 | 39660 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 01 09:54 | 2021 Mar 01 10:10 |
| Time of closest approach (UTC) | 2021 Jan 17 19:00:27.111 |
| Minimum distance | 11.358 km |
| Height difference | -1.794 km |
| Relative speed | 8.841 km/s |
| Angle between velocity vectors | 73° |
| Geographic position | 59.6°S, 13.6°W |
| Height | 801 km |
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