| Primary satellite | Secondary satellite |
| Name | Transit 2A | deb OV1-4 |
| Spacetrack catalog number | 45 | 5361 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 May 16 12:27 | 2025 May 14 12:36 |
| Time of closest approach (UTC) | 2025 Apr 20 22:58:21.980 |
| Minimum distance | 368.316 km |
| Height difference | 7.854 km |
| Relative speed | 11.978 km/s |
| Angle between velocity vectors | 105° |
| Geographic position | 35.5°N, 139.4°W |
| Height | 709 km |
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