| Primary satellite | Secondary satellite |
| Name | SHIYAN 20A (SY-20A) | Cosmos 494 |
| Spacetrack catalog number | 54699 | 6059 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 09:25 | 2024 Dec 23 04:50 |
| Time of closest approach (UTC) | 2024 Dec 24 01:06:55.214 |
| Minimum distance | 2.751 km |
| Height difference | -2.623 km |
| Relative speed | 12.375 km/s |
| Angle between velocity vectors | 112° |
| Geographic position | 45.3°N, 100.2°W |
| Height | 787 km |
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