| Primary satellite | Secondary satellite |
| Name | Transit 2A | IRIDIUM 33 DEB |
| Spacetrack catalog number | 45 | 34521 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 Jun 20 21:52 | 2025 Jun 20 06:48 |
| Time of closest approach (UTC) | 2025 May 21 06:49:46.793 |
| Minimum distance | 69.890 km |
| Height difference | 0.446 km |
| Relative speed | 14.510 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 28.0°N, 141.7°E |
| Height | 699 km |
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