| Primary satellite | Secondary satellite |
| Name | SL-19 R/B | SOZ |
| Spacetrack catalog number | 37363 | 15266 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Mar 07 18:52 | 2021 Mar 07 06:35 |
| Time of closest approach (UTC) | 2021 Jan 23 18:44:30.966 |
| Minimum distance | 18.986 km |
| Height difference | -13.463 km |
| Relative speed | 16.309 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 34.9°N, 172.0°E |
| Height | 466 km |
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