| 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 21:12:37.509 |
| Minimum distance | 70.656 km |
| Height difference | 3.686 km |
| Relative speed | 12.996 km/s |
| Angle between velocity vectors | 119° |
| Geographic position | 80.5°S, 167.2°W |
| Height | 647 km |
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