| Primary satellite | Secondary satellite |
| Name | DOVE 4 | DMC 3-FM2 |
| Spacetrack catalog number | 39430 | 40716 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2021 Mar 05 04:39 | 2021 Mar 05 03:17 |
| Time of closest approach (UTC) | 2021 Jan 22 21:44:19.492 |
| Minimum distance | 38.725 km |
| Height difference | 0.906 km |
| Relative speed | 4.681 km/s |
| Angle between velocity vectors | 36° |
| Geographic position | 81.7°S, 64.6°W |
| Height | 667 km |
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