| Primary satellite | Secondary satellite |
| Name | LO-87 | ELECTRON KICK STAGE R/B |
| Spacetrack catalog number | 41557 | 44636 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2021 Feb 25 11:54 | 2021 Feb 25 13:31 |
| Time of closest approach (UTC) | 2021 Jan 21 13:43:30.054 |
| Minimum distance | 15.955 km |
| Height difference | 4.130 km |
| Relative speed | 15.390 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 23.5°S, 33.8°W |
| Height | 497 km |
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