| Primary satellite | Secondary satellite |
| Name | deb Kosmos-397 | STARLINK-3238 |
| Spacetrack catalog number | 5015 | 49734 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 12:08 | 2024 Dec 23 19:30 |
| Time of closest approach (UTC) | 2024 Dec 24 10:19:28.622 |
| Minimum distance | 4.423 km |
| Height difference | -3.559 km |
| Relative speed | 12.717 km/s |
| Angle between velocity vectors | 111° |
| Geographic position | 26.0°S, 56.0°E |
| Height | 551 km |
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