| Primary satellite | Secondary satellite |
| Name | Lacrosse 4 Rocket | Iridium Sim2 |
| Spacetrack catalog number | 26474 | 24926 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 14 23:49 | 2021 Jan 15 11:00 |
| Time of closest approach (UTC) | 2020 Dec 02 01:03:37.279 |
| Minimum distance | 38.366 km |
| Height difference | -0.145 km |
| Relative speed | 14.282 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 44.9°S, 90.7°E |
| Height | 627 km |
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