| Primary satellite | Secondary satellite |
| Name | Cosmos 1656 | deb Kosmos-1275 |
| Spacetrack catalog number | 15755 | 12669 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 24 06:42 | 2023 Sep 24 08:50 |
| Time of closest approach (UTC) | 2023 Jun 04 07:48:58.918 |
| Minimum distance | 1865.671 km |
| Height difference | 12.067 km |
| Relative speed | 14.170 km/s |
| Angle between velocity vectors | 144° |
| Geographic position | 26.7°N, 93.9°E |
| Height | 838 km |
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