| Primary satellite | Secondary satellite |
| Name | SHIYAN 20A (SY-20A) | COSMOS 2251 DEB |
| Spacetrack catalog number | 54699 | 37336 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 09:25 | 2024 Dec 23 09:33 |
| Time of closest approach (UTC) | 2024 Dec 25 06:15:13.824 |
| Minimum distance | 1.982 km |
| Height difference | 1.981 km |
| Relative speed | 4.306 km/s |
| Angle between velocity vectors | 34° |
| Geographic position | 56.0°S, 88.5°W |
| Height | 823 km |
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