| Primary satellite | Secondary satellite |
| Name | GP-B | SAOCOM 1-A |
| Spacetrack catalog number | 28230 | 43641 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2026 Jan 13 02:53 | 2026 Jan 13 06:24 |
| Time of closest approach (UTC) | 2025 Dec 14 22:01:14.240 |
| Minimum distance | 70.626 km |
| Height difference | 1.019 km |
| Relative speed | 13.024 km/s |
| Angle between velocity vectors | 119° |
| Geographic position | 80.5°N, 0.6°E |
| Height | 635 km |
|