| Primary satellite | Secondary satellite |
| Name | H-2A R/B | SL-16 DEB |
| Spacetrack catalog number | 27601 | 39718 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 13 05:29 | 2021 Apr 12 13:53 |
| Time of closest approach (UTC) | 2021 Mar 08 15:57:27.989 |
| Minimum distance | 49.488 km |
| Height difference | 3.409 km |
| Relative speed | 4.567 km/s |
| Angle between velocity vectors | 36° |
| Geographic position | 39.9°N, 123.6°W |
| Height | 773 km |
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