| Primary satellite | Secondary satellite |
| Name | Transit 4A | COSMOS 1375 DEB |
| Spacetrack catalog number | 116 | 27803 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2026 Jan 13 02:20 | 2026 Jan 10 10:11 |
| Time of closest approach (UTC) | 2025 Dec 15 12:28:15.160 |
| Minimum distance | 39.913 km |
| Height difference | 0.405 km |
| Relative speed | 11.226 km/s |
| Angle between velocity vectors | 98° |
| Geographic position | 52.5°N, 102.5°E |
| Height | 879 km |
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