| Primary satellite | Secondary satellite |
| Name | Cosmos 1726 Rocket | RESURS O1 DEB |
| Spacetrack catalog number | 16496 | 47223 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 06 17:01 | 2021 Mar 06 09:17 |
| Time of closest approach (UTC) | 2021 Jan 22 07:34:57.762 |
| Minimum distance | 110.058 km |
| Height difference | 3.009 km |
| Relative speed | 14.291 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 81.3°S, 76.6°W |
| Height | 653 km |
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