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AO-27 - 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 09 14:47:582.77112.740NOAA 16 DEB42405small
2021 Dec 09 15:23:512.91714.240YUNHAI 2 143909large
2021 Dec 09 19:06:023.0259.548FENGYUN 1C DEB29772small
2021 Dec 10 04:57:523.5547.032COSMOS 1867 COOLANT39657small
2021 Dec 10 12:05:564.97014.611deb Delta21369small
2021 Dec 10 13:49:214.48714.785NOSS 4 (H)13874large
2021 Dec 10 14:11:463.40014.462FENGYUN 1C DEB38173small
2021 Dec 10 15:14:424.3678.300NOAA 17 DEB48759small
2021 Dec 10 21:26:552.79214.907METEOR 2-7 DEB35424small
2021 Dec 11 04:38:531.60514.046COSMOS 1275 DEB42223small
2021 Dec 11 09:30:494.4007.178COSMOS 1867 COOLANT39673small
2021 Dec 11 15:21:494.45914.540SARAL39086large
2021 Dec 12 02:35:444.32613.462COSMOS 1818 DEB36942small
2021 Dec 12 02:50:103.13714.760Cosmos 181817369large
2021 Dec 12 05:56:284.25813.356deb r/b Ablestar469small
2021 Dec 12 08:39:534.20514.862COSMOS 2251 DEB33791medium
2021 Dec 12 10:01:263.4580.966FENGYUN 1C DEB30105small
2021 Dec 12 11:00:382.08014.065COSMOS 1818 DEB36132small
2021 Dec 12 11:36:084.09413.881NOAA 16 DEB41095small
2021 Dec 12 11:50:193.13914.603deb Kosmos-222722445small
2021 Dec 12 13:29:032.91313.603ARIANE 1 DEB35517small
2021 Dec 12 14:20:340.54914.373SL-16 DEB39855small
2021 Dec 12 19:21:444.01713.497FENGYUN 1C DEB37049small
2021 Dec 12 21:36:310.6125.929deb Agena D4547small
2021 Dec 13 23:50:362.9248.513NOAA 17 DEB49480small
2021 Dec 14 08:04:044.8688.600COSMOS 1867 COOLANT39666small
2021 Dec 15 06:32:463.34714.926METEOR 2-6 DEB31406small
2021 Dec 15 09:07:063.35314.685DMSP B5D2-214506large
2021 Dec 15 16:57:314.38114.880METEOR 2-7 DEB36878small
2021 Dec 15 20:05:303.5284.355Cosmos 158 Rocket2802large
2021 Dec 15 21:03:303.56514.010SL-16 DEB39873small
 

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