| Primary satellite | Secondary satellite |
| Name | USA 281 | NIMBUS 2 DEB |
| Spacetrack catalog number | 43145 | 42439 |
| Radar cross section | | small |
| Epoch of two-line elements (UTC) | 2026 Jan 05 16:27 | 2026 Jan 19 07:05 |
| Time of closest approach (UTC) | 2025 Dec 18 17:44:44.772 |
| Minimum distance | 14.202 km |
| Height difference | -7.066 km |
| Relative speed | 13.465 km/s |
| Angle between velocity vectors | 134° |
| Geographic position | 54.7°N, 40.2°E |
| Height | 1088 km |
|