| Primary satellite | Secondary satellite |
| Name | Kosmos-1636 | deb Delta 104 |
| Spacetrack catalog number | 15618 | 8174 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 10:19 | 2024 Dec 22 09:43 |
| Time of closest approach (UTC) | 2024 Dec 29 03:52:08.400 |
| Minimum distance | 0.664 km |
| Height difference | -0.606 km |
| Relative speed | 14.236 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 30.1°N, 177.5°E |
| Height | 1478 km |
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