| Primary satellite | Secondary satellite |
| Name | NPP | METEOR 1-17 DEB |
| Spacetrack catalog number | 37849 | 57541 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 20 07:40 | 2026 Jan 19 10:40 |
| Time of closest approach (UTC) | 2025 Dec 15 05:03:50.566 |
| Minimum distance | 3.632 km |
| Height difference | -3.305 km |
| Relative speed | 14.846 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 74.8°S, 87.9°W |
| Height | 854 km |
|