| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | DMSP 5D-2 F14 DEB |
| Spacetrack catalog number | 23088 | 63155 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Jun 20 12:21 | 2025 Jun 20 09:28 |
| Time of closest approach (UTC) | 2025 May 17 20:16:08.568 |
| Minimum distance | 122.275 km |
| Height difference | -3.131 km |
| Relative speed | 14.073 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 69.0°S, 35.4°E |
| Height | 868 km |
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