| Primary satellite | Secondary satellite |
| Name | IRIDIUM 136 | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 42962 | 39665 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:05 | 2024 Dec 22 06:22 |
| Time of closest approach (UTC) | 2024 Dec 25 23:00:55.747 |
| Minimum distance | 2.324 km |
| Height difference | -2.324 km |
| Relative speed | 14.370 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 23.2°S, 8.5°W |
| Height | 787 km |
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