| Primary satellite | Secondary satellite |
| Name | IRIDIUM 122 | COSMOS 1275 DEB |
| Spacetrack catalog number | 42957 | 42097 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:33 | 2024 Dec 20 12:25 |
| Time of closest approach (UTC) | 2024 Dec 23 20:29:49.809 |
| Minimum distance | 4.731 km |
| Height difference | 4.706 km |
| Relative speed | 14.826 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 43.5°N, 146.0°W |
| Height | 783 km |
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