| Primary satellite | Secondary satellite |
| Name | STRAND 1 | Cosmos 1023 |
| Spacetrack catalog number | 39090 | 10961 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:12 | 2024 Dec 22 11:06 |
| Time of closest approach (UTC) | 2024 Dec 25 02:44:37.075 |
| Minimum distance | 2.877 km |
| Height difference | -0.908 km |
| Relative speed | 14.889 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 33.7°N, 126.4°W |
| Height | 776 km |
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