| Primary satellite | Secondary satellite |
| Name | ARGOS Delta rocket | NOAA 16 DEB |
| Spacetrack catalog number | 25637 | 41498 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 20:21 | 2021 Mar 05 13:36 |
| Time of closest approach (UTC) | 2021 Jan 21 02:31:01.666 |
| Minimum distance | 12.446 km |
| Height difference | 1.847 km |
| Relative speed | 13.242 km/s |
| Angle between velocity vectors | 127° |
| Geographic position | 72.7°S, 7.1°W |
| Height | 860 km |
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