| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | IRIDIUM 33 DEB |
| Spacetrack catalog number | 15766 | 34146 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2025 Jun 15 04:40 | 2025 Jun 15 16:28 |
| Time of closest approach (UTC) | 2025 May 16 19:38:35.035 |
| Minimum distance | 35.193 km |
| Height difference | 1.554 km |
| Relative speed | 14.872 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 9.3°N, 86.7°W |
| Height | 756 km |
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