| Primary satellite | Secondary satellite |
| Name | Transit 2A Rocket | SL-16 Debris |
| Spacetrack catalog number | 47 | 25403 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 18 21:45 | 2026 Jan 18 19:08 |
| Time of closest approach (UTC) | 2025 Dec 18 02:07:54.234 |
| Minimum distance | 41.847 km |
| Height difference | -3.396 km |
| Relative speed | 13.017 km/s |
| Angle between velocity vectors | 124° |
| Geographic position | 66.3°N, 156.7°E |
| Height | 913 km |
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