| Primary satellite | Secondary satellite |
| Name | HELIOS-2A | deb Transtage 4 |
| Spacetrack catalog number | 28492 | 3454 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 13:45 | 2024 Dec 22 22:56 |
| Time of closest approach (UTC) | 2024 Dec 25 19:27:41.219 |
| Minimum distance | 1.668 km |
| Height difference | -0.095 km |
| Relative speed | 13.646 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 12.2°S, 158.6°E |
| Height | 575 km |
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