| Primary satellite | Secondary satellite |
| Name | IRIDIUM 136 | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 42962 | 39666 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:05 | 2024 Dec 18 16:54 |
| Time of closest approach (UTC) | 2024 Dec 27 01:45:17.106 |
| Minimum distance | 0.448 km |
| Height difference | -0.127 km |
| Relative speed | 14.439 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 12.1°S, 51.9°W |
| Height | 784 km |
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