| Primary satellite | Secondary satellite |
| Name | SJ-12 | LEMUR 2 ZO |
| Spacetrack catalog number | 36596 | 43886 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 21:17 | 2021 Mar 05 17:48 |
| Time of closest approach (UTC) | 2021 Jan 25 19:59:17.127 |
| Minimum distance | 217.780 km |
| Height difference | 0.840 km |
| Relative speed | 9.592 km/s |
| Angle between velocity vectors | 79° |
| Geographic position | 80.8°S, 6.9°E |
| Height | 596 km |
|