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Vanguard 3 - 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
2021 Dec 01 23:34:450.73512.934PSLV DEB35350small
2021 Dec 01 23:46:192.4076.490Cosmos 708 Rocket7665large
2021 Dec 06 00:54:271.14113.321IRIDIUM 33 DEB33956small