| Primary satellite | Secondary satellite |
| Name | SL-16 DEB | deb Kosmos-1275 |
| Spacetrack catalog number | 39719 | 18640 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 03:17 | 2024 Dec 22 07:34 |
| Time of closest approach (UTC) | 2024 Dec 25 20:04:19.713 |
| Minimum distance | 3.069 km |
| Height difference | -2.572 km |
| Relative speed | 13.143 km/s |
| Angle between velocity vectors | 125° |
| Geographic position | 60.6°S, 64.0°E |
| Height | 934 km |
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