| Primary satellite | Secondary satellite |
| Name | BIRKELAND | OBJECT BD |
| Spacetrack catalog number | 55015 | 61786 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 Nov 13 06:07 | 2025 Nov 13 06:49 |
| Time of closest approach (UTC) | 2025 Oct 13 18:34:28.562 |
| Minimum distance | 1679.068 km |
| Height difference | 2.982 km |
| Relative speed | 15.129 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 2.5°S, 131.9°W |
| Height | 465 km |
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