| Primary satellite | Secondary satellite |
| Name | Cosmos 1814 Rocket | USA 81 |
| Spacetrack catalog number | 17304 | 21949 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 10:01 | 2024 Dec 23 02:58 |
| Time of closest approach (UTC) | 2024 Dec 26 00:13:30.705 |
| Minimum distance | 5.327 km |
| Height difference | 2.431 km |
| Relative speed | 6.523 km/s |
| Angle between velocity vectors | 52° |
| Geographic position | 73.0°N, 89.7°E |
| Height | 794 km |
|