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Vanguard 1 - Close encounters

The following table lists the upcoming close encounters with all other known orbiting objects for which orbital elements are available (over 16000). Only objects which come within 5 km are included. Please note that the accuracy of these predictions is limited by the accuracy of the latest orbital elements. A position accuracy of approximately 1 km is typical. Click on a row to get more details about the encounter and a graphical representation.

Time (UTC) Distance Relative speed Other object
km km/s Name ID Radar cross section
2025 Jul 08 11:25:560.46412.436IRIDIUM 11942959large
2025 Jul 10 00:57:082.65213.718CAPE 131130small
2025 Jul 11 07:47:342.3338.899KINEIS-4B63304medium
2025 Jul 11 14:42:492.79211.019ONEWEB-034449210large
 

DLR