| Primary satellite | Secondary satellite |
| Name | Vanguard 2 Rocket | Kosmos-926 |
| Spacetrack catalog number | 12 | 10137 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2025 Jun 19 00:56 | 2025 Jun 20 05:57 |
| Time of closest approach (UTC) | 2025 May 18 05:23:59.185 |
| Minimum distance | 27.042 km |
| Height difference | 7.836 km |
| Relative speed | 11.687 km/s |
| Angle between velocity vectors | 101° |
| Geographic position | 27.6°N, 14.2°W |
| Height | 963 km |
|