| Primary satellite | Secondary satellite |
| Name | NPP | METEOR 1-17 DEB |
| Spacetrack catalog number | 37849 | 57545 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 20 07:40 | 2025 Dec 16 06:53 |
| Time of closest approach (UTC) | 2025 Dec 15 18:38:54.062 |
| Minimum distance | 7.639 km |
| Height difference | -6.722 km |
| Relative speed | 14.850 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 81.1°S, 24.3°E |
| Height | 856 km |
|