| Primary satellite | Secondary satellite |
| Name | Cosmos 1745 Rocket | deb Kosmos-1275 |
| Spacetrack catalog number | 16728 | 12666 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 09:40 | 2021 Mar 07 08:52 |
| Time of closest approach (UTC) | 2021 Jan 27 18:33:34.674 |
| Minimum distance | 8.470 km |
| Height difference | 1.187 km |
| Relative speed | 14.507 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 36.5°S, 27.4°E |
| Height | 1009 km |
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