| Primary satellite | Secondary satellite |
| Name | XW-2D | LEMUR 2 TALLHAMN-ATC |
| Spacetrack catalog number | 40907 | 43167 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 20:04 | 2021 Mar 07 19:21 |
| Time of closest approach (UTC) | 2021 Jan 19 04:10:46.102 |
| Minimum distance | 38.858 km |
| Height difference | -2.015 km |
| Relative speed | 15.158 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 82.6°S, 66.3°W |
| Height | 540 km |
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