| Primary satellite | Secondary satellite |
| Name | ATLAS CENTAUR R/B | SL-18 DEB |
| Spacetrack catalog number | 38770 | 35359 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2021 Jan 12 16:37 | 2021 Jan 21 16:17 |
| Time of closest approach (UTC) | 2020 Dec 05 06:57:37.941 |
| Minimum distance | 569.068 km |
| Height difference | -4.083 km |
| Relative speed | 9.957 km/s |
| Angle between velocity vectors | 84° |
| Geographic position | 63.2°S, 51.8°E |
| Height | 692 km |
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