| Primary satellite | Secondary satellite |
| Name | Cosmos 2278 Rocket | SL-3 DEB |
| Spacetrack catalog number | 23088 | 35516 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 16 16:16 | 2025 Nov 15 10:45 |
| Time of closest approach (UTC) | 2025 Oct 15 18:28:39.462 |
| Minimum distance | 40.660 km |
| Height difference | -3.098 km |
| Relative speed | 13.897 km/s |
| Angle between velocity vectors | 139° |
| Geographic position | 46.5°S, 85.4°W |
| Height | 859 km |
|