| Primary satellite | Secondary satellite |
| Name | NOAA 15 | DELTA 1 DEB |
| Spacetrack catalog number | 25338 | 42563 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Dec 15 21:56 | 2025 Dec 13 19:40 |
| Time of closest approach (UTC) | 2024 Dec 10 09:57:07.483 |
| Minimum distance | 6502.274 km |
| Height difference | 143.399 km |
| Relative speed | 14.626 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 3.0°N, 140.1°E |
| Height | 812 km |
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