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Location: Elk Horn Observatory
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Envisat - 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 Jun 14 20:25:033.41014.487DMSP 5D-2 F6 DEB40915small
2021 Jun 14 21:20:341.66714.726FENGYUN 1C DEB30996small
2021 Jun 14 23:44:453.35714.313COSMOS 1818 DEB36940small
2021 Jun 15 00:20:593.13211.040Cosmos 1741 Rocket16682large
2021 Jun 15 10:31:464.85814.528Cosmos 783 Rocket8459large
2021 Jun 15 11:02:022.19014.795deb Agena D4449small
2021 Jun 16 00:52:583.02514.900IRIDIUM 33 DEB35618small
2021 Jun 16 08:03:144.74513.749FENGYUN 1C DEB30447small
2021 Jun 16 08:51:093.73614.245FENGYUN 1C DEB35118small
2021 Jun 16 09:12:502.5973.005deb Geos 310728small
2021 Jun 16 23:38:422.21714.871COSMOS 2251 DEB47066small
2021 Jun 17 00:52:322.0590.821deb Delta 13912204small
2021 Jun 17 03:29:353.52614.054COSMOS 1818 DEB36943small
2021 Jun 17 16:52:534.66914.462FENGYUN 1C DEB32197small
2021 Jun 18 21:17:362.18014.554DAPP 35264953medium
2021 Jun 19 07:40:132.89914.904TRANSIT 15 DEB29265small
2021 Jun 19 09:00:383.13414.966Cosmos 972 Rocket10541large
2021 Jun 19 13:32:414.55114.861COSMOS 2251 DEB34015small
2021 Jun 19 15:12:424.75114.863COSMOS 2251 DEB34015small
2021 Jun 19 23:31:114.30214.885COSMOS 2251 DEB34792small
 

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