| Primary satellite | Secondary satellite |
| Name | SL-16 R/B | NOAA 16 DEB |
| Spacetrack catalog number | 28353 | 41416 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 14 05:40 | 2021 Apr 14 02:05 |
| Time of closest approach (UTC) | 2021 Mar 07 09:47:15.598 |
| Minimum distance | 28.571 km |
| Height difference | 2.785 km |
| Relative speed | 6.526 km/s |
| Angle between velocity vectors | 52° |
| Geographic position | 56.5°N, 173.2°W |
| Height | 856 km |
|