| Primary satellite | Secondary satellite |
| Name | Transit 2A | IRS P6 |
| Spacetrack catalog number | 45 | 28050 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2025 Dec 04 19:51 | 2025 Dec 04 22:38 |
| Time of closest approach (UTC) | 2025 Nov 11 05:26:12.275 |
| Minimum distance | 18.974 km |
| Height difference | -1.175 km |
| Relative speed | 8.951 km/s |
| Angle between velocity vectors | 74° |
| Geographic position | 61.4°N, 136.3°E |
| Height | 856 km |
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