| Primary satellite | Secondary satellite |
| Name | Transit 2A | PAYLOAD C |
| Spacetrack catalog number | 45 | 39210 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2025 Dec 04 19:51 | 2025 Dec 05 06:40 |
| Time of closest approach (UTC) | 2025 Nov 10 11:57:31.736 |
| Minimum distance | 40.183 km |
| Height difference | -0.897 km |
| Relative speed | 11.359 km/s |
| Angle between velocity vectors | 98° |
| Geographic position | 66.1°S, 115.1°W |
| Height | 686 km |
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