| Primary satellite | Secondary satellite |
| Name | STRAND 1 | Cosmos 1125 |
| Spacetrack catalog number | 39090 | 11510 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2023 Jan 28 12:45 | 2023 Jan 28 22:45 |
| Time of closest approach (UTC) | 2022 Dec 02 06:44:55.219 |
| Minimum distance | 2.912 km |
| Height difference | 2.739 km |
| Relative speed | 14.378 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 70.9°S, 152.6°E |
| Height | 803 km |
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