| Primary satellite | Secondary satellite |
| Name | deb Kosmos-1275 | Kosmos-628 |
| Spacetrack catalog number | 12727 | 7094 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:41 | 2024 Dec 23 04:31 |
| Time of closest approach (UTC) | 2024 Dec 29 12:46:39.152 |
| Minimum distance | 4.931 km |
| Height difference | -4.235 km |
| Relative speed | 14.603 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 25.0°S, 110.8°E |
| Height | 966 km |
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