| Primary satellite | Secondary satellite |
| Name | SR | Cosmos 249 |
| Spacetrack catalog number | 46 | 3504 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2025 Jun 11 09:50 | 2025 Jun 12 06:05 |
| Time of closest approach (UTC) | 2025 May 21 08:11:32.657 |
| Minimum distance | 37.030 km |
| Height difference | -0.436 km |
| Relative speed | 5.724 km/s |
| Angle between velocity vectors | 43° |
| Geographic position | 61.9°S, 87.0°E |
| Height | 605 km |
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