AO-73 : Funcube-1

Rotation Period

22 May 2020 = 30.5 seconds (from averaged panel temperatures)
23 May 2020 = 28.9 seconds (from averaged panel temperatures)
24 May 2020 = 26.8 seconds (from averaged panel temperatures)
25 May 2020 = 25.4 seconds (from averaged panel temperatures)
26 May 2020 = 23.8 seconds (from averaged panel temperatures)
27 May 2020 = 22.2 seconds (from averaged panel temperatures)
28 May 2020 = 21.5 seconds (from averaged panel temperatures)

AO-73 over the last week has exhibited increased Nutation with increasing rotational spin (reduced spin period).
This week we may see AO-73 commence tumbling due to its non-central Moment of Inertia.

73 de Colin VK5HI.

AO-73 : Funcube-1

Rotation Period

08 May 2020 = 89.9 seconds (from averaged panel temperatures)
09 May 2020 = 79.9 seconds (from averaged panel temperatures)
10 May 2020 = 72.1 seconds (from averaged panel temperatures)
11 May 2020 = 67.7 seconds (from averaged panel temperatures)
12 May 2020 = 62.3 seconds (from averaged panel temperatures)
13 May 2020 = 57.4 seconds (from averaged panel temperatures)
14 May 2020 = 53.4 seconds (from averaged panel temperatures)

AO-73 continues to maintain a very stable attitude and is spinning about the Z-Z axis with increasing Nutation.

73 de Colin VK5HI.