| Primary satellite | Secondary satellite |
| Name | Transit 4A | deb Kosmos-1375 |
| Spacetrack catalog number | 116 | 16378 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2025 May 14 01:44 | 2025 May 13 17:47 |
| Time of closest approach (UTC) | 2025 Apr 20 12:26:46.663 |
| Minimum distance | 1.664 km |
| Height difference | 0.355 km |
| Relative speed | 12.515 km/s |
| Angle between velocity vectors | 117° |
| Geographic position | 40.1°N, 169.5°W |
| Height | 981 km |
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