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Time: 23:48:51

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
2021 May 10 02:56:164.0599.444Burner II No. 114954large
2021 May 11 22:58:173.23714.245CZ-4 DEB27677small
2021 May 12 14:45:343.9268.627Cosmos 1171 Rocket11751large
2021 May 14 08:44:314.70612.740FENGYUN 1C DEB29846small