| Primary satellite | Secondary satellite |
| Name | SPROUT | FLOCK 1C 5 |
| Spacetrack catalog number | 39770 | 40038 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Feb 25 12:53 | 2021 Feb 25 13:41 |
| Time of closest approach (UTC) | 2021 Jan 21 00:45:19.206 |
| Minimum distance | 6.807 km |
| Height difference | -3.301 km |
| Relative speed | 14.951 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 20.9°S, 3.7°E |
| Height | 606 km |
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