| Primary satellite | Secondary satellite |
| Name | Vanguard 2 | SENTINEL 1A |
| Spacetrack catalog number | 11 | 39634 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 14 09:44 | 2024 Dec 14 18:25 |
| Time of closest approach (UTC) | 2024 Nov 13 16:01:07.274 |
| Minimum distance | 81.479 km |
| Height difference | 3.019 km |
| Relative speed | 13.900 km/s |
| Angle between velocity vectors | 128° |
| Geographic position | 15.5°N, 148.3°W |
| Height | 694 km |
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