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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
2020 Nov 30 11:26:413.9614.926Cosmos 146114064large
2020 Nov 30 13:43:223.02511.935OBJECT AV43801medium
2020 Dec 01 02:06:162.29710.968NIUSAT42766medium
2020 Dec 01 16:44:494.9419.948COSMOS 2251 DEB35983small
2020 Dec 04 03:08:294.63411.573Kosmos-7648288medium