| Primary satellite | Secondary satellite |
| Name | Cosmos 1763 Rocket | COSMOS 2251 DEB |
| Spacetrack catalog number | 16864 | 34274 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 16 14:30 | 2021 Jan 16 11:45 |
| Time of closest approach (UTC) | 2020 Nov 28 17:37:40.776 |
| Minimum distance | 50.568 km |
| Height difference | -0.175 km |
| Relative speed | 2.367 km/s |
| Angle between velocity vectors | 18° |
| Geographic position | 73.9°N, 49.4°E |
| Height | 747 km |
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