| Primary satellite | Secondary satellite |
| Name | deb Agena D | COSMOS 2554 |
| Spacetrack catalog number | 4651 | 52202 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2025 Nov 16 08:22 | 2025 Nov 16 21:02 |
| Time of closest approach (UTC) | 2025 Oct 19 06:53:42.879 |
| Minimum distance | 89.390 km |
| Height difference | -3.306 km |
| Relative speed | 12.872 km/s |
| Angle between velocity vectors | 121° |
| Geographic position | 66.5°S, 121.7°W |
| Height | 928 km |
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