| Primary satellite | Secondary satellite |
| Name | Cosmos 1745 Rocket | deb P76-5 |
| Spacetrack catalog number | 16728 | 8867 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 19:36 | 2021 Mar 07 12:42 |
| Time of closest approach (UTC) | 2021 Jan 28 04:47:40.600 |
| Minimum distance | 8.340 km |
| Height difference | -2.596 km |
| Relative speed | 13.808 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 80.7°S, 170.4°W |
| Height | 1026 km |
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