Rotation Period
25 Sep 2020 = 16.0 seconds (from averaged panel temperatures)
26 Sep 2020 = 15.5 seconds (from averaged panel temperatures)
27 Sep 2020 = 15.8 seconds (from averaged panel temperatures)
28 Sep 2020 = 16.9 seconds (from averaged panel temperatures)
29 Sep 2020 = 18.6 seconds (from averaged panel temperatures)
30 Sep 2020 = 22.7 seconds (from averaged panel temperatures)
01 Oct 2020 = 25.3 seconds (from averaged panel temperatures)
During this last week on some of the downloads over VK we have observed the Dzhanibekov Effect where the spin motion of AO-73 has reversed back and forth during a single pass. Additionally the spin motion has been either normal or reversed on consecutive passes.
AO-73 is now exhibiting a very complex attitude and motion, refer graphic below.
73 de Colin VK5HI