| Primary satellite | Secondary satellite |
| Name | Helios 1B rocket | deb Kosmos-841 |
| Spacetrack catalog number | 25979 | 9704 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Feb 04 21:53 | 2023 Feb 04 23:21 |
| Time of closest approach (UTC) | 2022 Dec 04 21:42:56.226 |
| Minimum distance | 1382.715 km |
| Height difference | -2.524 km |
| Relative speed | 6.561 km/s |
| Angle between velocity vectors | 51° |
| Geographic position | 54.1°S, 79.2°W |
| Height | 593 km |
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