| Primary satellite | Secondary satellite |
| Name | Vanguard 2 | Kosmos-1745 |
| Spacetrack catalog number | 11 | 16727 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:16 | 2024 Dec 22 21:20 |
| Time of closest approach (UTC) | 2024 Dec 27 19:23:03.322 |
| Minimum distance | 4.146 km |
| Height difference | -2.993 km |
| Relative speed | 12.710 km/s |
| Angle between velocity vectors | 115° |
| Geographic position | 4.8°S, 113.4°E |
| Height | 993 km |
|