| Primary satellite | Secondary satellite |
| Name | Cosmos 2026 Rocket | deb Delta 139 |
| Spacetrack catalog number | 20046 | 12176 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Jan 15 12:14 | 2021 Jan 14 19:32 |
| Time of closest approach (UTC) | 2020 Dec 03 16:17:24.709 |
| Minimum distance | 4.928 km |
| Height difference | -4.887 km |
| Relative speed | 14.694 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 10.2°N, 124.0°E |
| Height | 984 km |
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