| Primary satellite | Secondary satellite |
| Name | Burner II No. 4 | COSMOS 2251 DEB |
| Spacetrack catalog number | 2940 | 34969 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:58 | 2024 Dec 18 14:57 |
| Time of closest approach (UTC) | 2024 Dec 29 22:18:52.627 |
| Minimum distance | 4.759 km |
| Height difference | 4.711 km |
| Relative speed | 11.297 km/s |
| Angle between velocity vectors | 99° |
| Geographic position | 72.9°S, 156.8°E |
| Height | 838 km |
|