| Primary satellite | Secondary satellite |
| Name | Meteor 2-21 | deb Kosmos-1275 |
| Spacetrack catalog number | 22782 | 12720 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 17 20:17 | 2025 Nov 17 16:19 |
| Time of closest approach (UTC) | 2025 Oct 16 01:08:36.486 |
| Minimum distance | 23.823 km |
| Height difference | 5.248 km |
| Relative speed | 12.393 km/s |
| Angle between velocity vectors | 115° |
| Geographic position | 76.6°S, 53.4°E |
| Height | 982 km |
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