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Vanguard 1 Rocket - 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 07 20:24:293.8789.750HAIYANG 2A37781large
2021 Dec 08 08:19:404.1137.519SL-14 Deb26023small
2021 Dec 08 17:12:033.3318.676OV2-1/LCS2 H1646large