| Primary satellite | Secondary satellite |
| Name | FW4S | SMAP |
| Spacetrack catalog number | 7228 | 40376 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:28 | 2024 Dec 23 11:56 |
| Time of closest approach (UTC) | 2024 Dec 27 14:05:04.873 |
| Minimum distance | 4.808 km |
| Height difference | 3.680 km |
| Relative speed | 13.795 km/s |
| Angle between velocity vectors | 133° |
| Geographic position | 69.6°S, 81.0°E |
| Height | 706 km |
|