| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 Rocket | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 18096 | 39663 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Dec 06 23:03 | 2025 Dec 06 20:56 |
| Time of closest approach (UTC) | 2024 Nov 08 13:49:01.219 |
| Minimum distance | 3018.050 km |
| Height difference | 20.781 km |
| Relative speed | 10.090 km/s |
| Angle between velocity vectors | 85° |
| Geographic position | 72.5°S, 68.3°W |
| Height | 794 km |
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