| Primary satellite | Secondary satellite |
| Name | H-2A R/B | Orbcomm A4 (FM08) |
| Spacetrack catalog number | 27601 | 25112 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Apr 13 05:29 | 2021 Apr 13 04:56 |
| Time of closest approach (UTC) | 2021 Mar 09 23:51:20.354 |
| Minimum distance | 3.745 km |
| Height difference | 1.049 km |
| Relative speed | 13.731 km/s |
| Angle between velocity vectors | 133° |
| Geographic position | 32.3°N, 116.2°E |
| Height | 762 km |
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