Rotation Period
09 Apr 2021 = 22.0 seconds (from averaged panel temperatures)
10 Apr 2021 = 28.5 seconds (from averaged panel temperatures)
11 Apr 2021 = 26.9 seconds (from averaged panel temperatures)
12 Apr 2021 = 32.1 seconds (from averaged panel temperatures)
13 Apr 2021 = 36.7 seconds (from averaged panel temperatures)
14 Apr 2021 = 45.7 seconds (from averaged panel temperatures)
15 Apr 2021 = 51.5 seconds (from averaged panel temperatures)
AO-73 continues to rotate about the Z-Z axis in reverse of its normal spin direction, with the Z-Z axis maintaining an irregular movement about AO-73’s offset centre of mass. After reporting on April 10th that AO-73 had snapped from a complex unstable attitude to a less complex and an improved attitude, within 24 hours it had again resumed an unstable attitude again. The recommencement of eclipse periods on April 13th is again exhibiting differing frequency profiles for both the morning and evening passes.
73 de Colin VK5HI.