| Primary satellite | Secondary satellite |
| Name | STRAND 1 | Cosmos 540 |
| Spacetrack catalog number | 39090 | 6323 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:12 | 2024 Dec 22 11:31 |
| Time of closest approach (UTC) | 2024 Dec 26 15:43:14.735 |
| Minimum distance | 2.261 km |
| Height difference | -2.260 km |
| Relative speed | 14.888 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 9.2°S, 31.9°E |
| Height | 780 km |
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