| Primary satellite | Secondary satellite |
| Name | Helios 1A Rocket | CZ-2C R/B |
| Spacetrack catalog number | 23608 | 43173 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Apr 13 03:38 | 2021 Apr 13 01:52 |
| Time of closest approach (UTC) | 2021 Mar 02 10:10:08.497 |
| Minimum distance | 245.994 km |
| Height difference | 3.502 km |
| Relative speed | 13.595 km/s |
| Angle between velocity vectors | 128° |
| Geographic position | 17.7°N, 35.0°W |
| Height | 570 km |
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