| Primary satellite | Secondary satellite |
| Name | CZ-4 R/B | deb Centaur AC-2 |
| Spacetrack catalog number | 29507 | 698 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Apr 12 19:39 | 2021 Apr 12 20:16 |
| Time of closest approach (UTC) | 2021 Mar 06 17:16:28.514 |
| Minimum distance | 17.187 km |
| Height difference | 3.124 km |
| Relative speed | 11.785 km/s |
| Angle between velocity vectors | 101° |
| Geographic position | 29.9°S, 156.0°W |
| Height | 605 km |
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