| Primary satellite | Secondary satellite |
| Name | COSMOS 1867 COOLANT | Cosmos 1937 |
| Spacetrack catalog number | 39664 | 19038 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 06:38 | 2024 Dec 23 10:34 |
| Time of closest approach (UTC) | 2024 Dec 29 06:13:01.149 |
| Minimum distance | 2.553 km |
| Height difference | -1.875 km |
| Relative speed | 7.875 km/s |
| Angle between velocity vectors | 64° |
| Geographic position | 64.4°S, 138.2°E |
| Height | 791 km |
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