| Primary satellite | Secondary satellite |
| Name | Vanguard 2 | FW4S |
| Spacetrack catalog number | 11 | 7228 |
| Radar cross section | medium | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:16 | 2024 Dec 22 14:50 |
| Time of closest approach (UTC) | 2024 Dec 27 17:45:26.671 |
| Minimum distance | 3.268 km |
| Height difference | -0.815 km |
| Relative speed | 11.223 km/s |
| Angle between velocity vectors | 93° |
| Geographic position | 32.5°S, 127.4°W |
| Height | 709 km |
|