| Primary satellite | Secondary satellite |
| Name | IRIDIUM 100 | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 42956 | 39662 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:38 | 2024 Dec 17 13:45 |
| Time of closest approach (UTC) | 2024 Dec 25 04:58:01.969 |
| Minimum distance | 4.895 km |
| Height difference | 4.285 km |
| Relative speed | 14.396 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 20.8°N, 83.0°E |
| Height | 780 km |
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