| Primary satellite | Secondary satellite |
| Name | CENTAUR R/B | deb Transtage 4 |
| Spacetrack catalog number | 26906 | 1959 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2021 Mar 31 19:53 | 2021 Apr 10 20:43 |
| Time of closest approach (UTC) | 2021 Mar 06 12:39:05.765 |
| Minimum distance | 1.504 km |
| Height difference | 0.176 km |
| Relative speed | 9.876 km/s |
| Angle between velocity vectors | 82° |
| Geographic position | 24.5°S, 79.9°E |
| Height | 753 km |
|