| Primary satellite | Secondary satellite |
| Name | Cosmos 389 Rocket | PAINANI 1 |
| Spacetrack catalog number | 4814 | 44365 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2021 Apr 22 12:55 | 2021 Apr 22 12:24 |
| Time of closest approach (UTC) | 2021 Mar 06 10:56:40.000 |
| Minimum distance | 167.046 km |
| Height difference | 0.580 km |
| Relative speed | 10.238 km/s |
| Angle between velocity vectors | 84° |
| Geographic position | 45.7°N, 117.5°W |
| Height | 453 km |
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