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STRAND 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 Sep 18 08:39:213.88512.928COSMOS 2251 DEB40218small
2021 Sep 18 14:11:104.50614.677deb Chang Zheng 420881medium
2021 Sep 18 21:09:334.44313.803IRIDIUM 13043073large
2021 Sep 19 06:40:154.90514.740CZ-2D DEB44549small
2021 Sep 19 08:55:242.86513.921Cosmos 8419022large
2021 Sep 19 15:56:463.91714.906Cosmos 1354 Rocket13149large
2021 Sep 20 00:51:331.76813.968SPOT 3 Rocket22830large
2021 Sep 20 10:07:002.18214.403FENGYUN 1C DEB32156small
2021 Sep 20 15:05:402.03110.185COSMOS 1867 COOLANT39668small
2021 Sep 21 05:31:461.99214.743YUNHAI 1-02 DEB48524small
2021 Sep 21 07:12:113.34414.743YUNHAI 1-02 DEB48524small
2021 Sep 21 08:19:493.85514.645DMSP 5D-2 F11 DEB29071small
2021 Sep 21 10:12:352.31312.096IRIDIUM 17243927large
2021 Sep 21 13:36:324.12311.308FENGYUN 1C DEB31520small
2021 Sep 21 21:57:443.4179.900DELTA 1 DEB42556small
2021 Sep 22 03:07:074.31714.477CZ-2D DEB47975small
2021 Sep 22 05:37:472.70214.471CZ-2D DEB47975small
2021 Sep 22 07:10:204.8419.767deb Agena D5063small
2021 Sep 22 15:33:384.88213.280COSMOS 2251 DEB34001small
2021 Sep 22 21:26:403.0988.781COSMOS 2251 DEB35065small
2021 Sep 22 23:20:214.83314.720YUNHAI 1-02 DEB48194small
2021 Sep 23 02:26:443.67310.711COSMOS 2251 DEB47068small
2021 Sep 23 09:23:121.96914.734HEATHSAT22827medium
2021 Sep 23 12:35:233.07114.896IRIDIUM 14543253large
2021 Sep 23 19:52:213.84112.887CSL-04 DEB26442small
2021 Sep 23 20:02:523.4107.743COSMOS 2251 DEB35765small
 

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