| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | DMSP 5528 |
| Spacetrack catalog number | 23088 | 5903 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 Nov 16 16:16 | 2025 Nov 16 19:11 |
| Time of closest approach (UTC) | 2025 Oct 14 18:52:15.482 |
| Minimum distance | 71.766 km |
| Height difference | 1.802 km |
| Relative speed | 10.706 km/s |
| Angle between velocity vectors | 93° |
| Geographic position | 69.1°S, 45.8°W |
| Height | 867 km |
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