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Vanguard 2 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 Apr 19 16:41:154.54413.906FENGYUN 1C DEB29840small
2021 Apr 20 01:03:061.0375.819Cosmos 133113027large
2021 Apr 20 01:32:002.4667.796OPS 4682 DEB26733small
2021 Apr 20 22:21:122.43812.901NOAA 611416large
2021 Apr 21 04:15:270.73911.211COSMOS 1249 COOLANT26512small