| Primary satellite | Secondary satellite |
| Name | NPP | METEOR 1-17 DEB |
| Spacetrack catalog number | 37849 | 57539 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 20 07:40 | 2026 Jan 19 20:48 |
| Time of closest approach (UTC) | 2025 Dec 17 02:55:07.682 |
| Minimum distance | 4.271 km |
| Height difference | 2.148 km |
| Relative speed | 14.850 km/s |
| Angle between velocity vectors | 180° |
| Geographic position | 63.2°S, 176.4°E |
| Height | 853 km |
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