| Primary satellite | Secondary satellite |
| Name | IRIDIUM 100 | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 42956 | 39637 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:38 | 2024 Dec 22 17:35 |
| Time of closest approach (UTC) | 2024 Dec 26 04:23:06.252 |
| Minimum distance | 3.012 km |
| Height difference | 2.990 km |
| Relative speed | 14.430 km/s |
| Angle between velocity vectors | 150° |
| Geographic position | 15.6°N, 90.0°E |
| Height | 779 km |
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