| Primary satellite | Secondary satellite |
| Name | IRIDIUM 100 | COSMOS 1867 COOLANT |
| Spacetrack catalog number | 42956 | 39640 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:38 | 2024 Dec 22 20:51 |
| Time of closest approach (UTC) | 2024 Dec 27 11:19:07.429 |
| Minimum distance | 1.945 km |
| Height difference | 1.643 km |
| Relative speed | 14.455 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 6.5°S, 163.6°E |
| Height | 782 km |
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