| Primary satellite | Secondary satellite |
| Name | Cosmos 2026 Rocket | deb Delta 139 |
| Spacetrack catalog number | 20046 | 12178 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 19:59 | 2021 Jan 17 23:53 |
| Time of closest approach (UTC) | 2020 Nov 26 20:47:27.267 |
| Minimum distance | 228.843 km |
| Height difference | -0.650 km |
| Relative speed | 5.475 km/s |
| Angle between velocity vectors | 44° |
| Geographic position | 68.2°N, 85.0°E |
| Height | 972 km |
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