| Primary satellite | Secondary satellite |
| Name | Transit 2A | DMSP BIV-2 Rocket |
| Spacetrack catalog number | 45 | 2741 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2026 Jan 16 10:58 | 2026 Jan 16 13:36 |
| Time of closest approach (UTC) | 2025 Dec 20 17:07:53.855 |
| Minimum distance | 9.536 km |
| Height difference | 3.564 km |
| Relative speed | 14.789 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 21.7°N, 135.5°E |
| Height | 783 km |
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