AO-73 Funcube 1

Spin Period

23 Nov 2018 = 49.1 seconds (from averaged panel temperatures)
24 Nov 2018 = 46.4 seconds (from averaged panel temperatures)
25 Nov 2018 = 43.6 seconds (from averaged panel temperatures)
26 Nov 2018 = 41.5 seconds (from averaged panel temperatures)
27 Nov 2018 = 39.0 seconds (from averaged panel temperatures)
28 Nov 2018 = 36.8 seconds (from averaged panel temperatures)
29 Nov 2018 = 34.5 seconds (from averaged panel temperatures)

AO-73 continues to slowly increase in speed albeit with increasing Nutation.

73. Colin VK5HI.

AO-73 Funcube-1

Spin Period

09 Nov 2018 = 111.6 seconds (from averaged panel temperatures)
10 Nov 2018 = 105.6 seconds (from averaged panel temperatures)
11 Nov 2018 = 98.8 seconds (from averaged panel temperatures)
12 Nov 2018 = 92.7 seconds (from averaged panel temperatures)
13 Nov 2018 = 86.4 seconds (from averaged panel temperatures)
14 Nov 2018 = 81.7 seconds (from averaged panel temperatures)
15 Nov 2018 = 77.6 seconds (from averaged panel temperatures)

73. Colin VK5HI.

AO-73 Funcube-1


Spin Period

01 Nov 2018 = 152.8 seconds (from averaged panel temperatures)
02 Nov 2018 = 181.6 seconds (from averaged panel temperatures)
03 Nov 2018 = 194.7 seconds (from averaged panel temperatures)
04 Nov 2018 = 149.1 seconds (from averaged panel temperatures)
05 Nov 2018 = 132.3 seconds (from averaged panel temperatures)
06 Nov 2018 = 144.3 seconds (from averaged panel temperatures)
07 Nov 2018 = 127.3 seconds (from averaged panel temperatures)
08 Nov 2018 = 127.3 seconds (from averaged panel temperatures)

This week I have been researching the significant variance in daily spin rates.
At this point I have not settled on any conclusions, but am in the process of investigating a number of new theories.
73. Colin VK5HI.

AO-73 Funcube 1

Spin Period

12 Oct 2018 = 32.4 seconds (from Sun Sensor Data)
13 Oct 2018 = 35.2 seconds (from Sun Sensor Data)
14 Oct 2018 = 38.9 seconds (from Sun Sensor Data)
15 Oct 2018 = 45.4 seconds (from averaged panel temperatures)
16 Oct 2018 = 180.0 seconds (from WOD Data)
17 Oct 2018 = 705.0 seconds (from WOD Data)
18 Oct 2018 = 1080.0 seconds (from WOD Data)
19 Oct 2018 = 1320.0 seconds (from WOD Data)
20 Oct 2018 = 972.0 seconds (from WOD Data)
21 Oct 2018 = 930.0 seconds (from WOD Data)
22 Oct 2018 = 585.0 seconds (from WOD Data)
23 Oct 2018 = 382.5 seconds (from averaged panel temperatures)
24 Oct 2018 = 307.0 seconds (from averaged panel temperatures)
25 Oct 2018 = 302.0 seconds (from averaged panel temperatures)
26 Oct 2018 = 262.0 seconds (from averaged panel temperatures)
27 Oct 2018 = 228.3 seconds (from averaged panel temperatures)
28 Oct 2018 = 209.7 seconds (from averaged panel temperatures)
29 Oct 2018 = 187.2 seconds (from averaged panel temperatures)
30 Oct 2018 = 168.5 seconds (from averaged panel temperatures)
31 Oct 2018 = 167.2 seconds (from averaged panel temperatures)
01 Nov 2018 = 152.8 seconds (from averaged panel temperatures)

It would appear that there may have been a spin reversal during the period from 13th to 16th October. As of 22nd October AO-73 has been spinning around the Z-Z axis, with minimal Nutation.

73. Colin VK5HI.

FUNcube-1 spin period update

28 Sep 2018 = 21.3 seconds (from averaged panel temperatures) data courtesy VK3HBF
29 Sep 2018 = 20.1 seconds (from averaged panel temperatures) data courtesy VK3HBF
30 Sep 2018 = 18.9 seconds (from averaged panel temperatures)
1 Oct 2018 = 18.2 seconds (from averaged panel temperatures)
2 Oct 2018 = 17.2 seconds (from averaged panel temperatures)
3 Oct 2018 = 16.6 seconds (from averaged panel temperatures) *
4 Oct 2018 = 16.2 seconds (from averaged panel temperatures)
* Just faster than our previous highest spin rate.

73 de Terry VK5GU

FUNcube-1 Spin Period Update


Spin Period
14 Sep 2018 = 22.5 seconds (from averaged panel temperatures)
15 Sep 2018 = 22.3 seconds (from averaged panel temperatures)
16 Sep 2018 = 22.5 seconds (from averaged panel temperatures)
17 Sep 2018 = 25.5 seconds (from averaged panel temperatures)
18 Sep 2018 = 25.0 seconds (from averaged panel temperatures)
19 Sep 2018 = 26.3 seconds (from averaged panel temperatures)
20 Sep 2018 = 28.2 seconds (from averaged panel temperatures)
Some ups and downs this week but overall still slowing down.

73 de Terry VK5GU.

FUNcube-1 spin period update

17 Aug 2018 = 41.4 seconds (from averaged panel temperatures)
18 Aug 2018 = 39.9 seconds (from averaged panel temperatures)
19 Aug 2018 = 39.0 seconds (from averaged panel temperatures) – VK3HBF
20 Aug 2018 = 37.8 seconds (from averaged panel temperatures)
21 Aug 2018 = 36.7 seconds (from averaged panel temperatures)
22 Aug 2018 = 35.3 seconds (from averaged panel temperatures)
23 Aug 2018 = 34.3 seconds (from averaged panel temperatures)
Thanks again to Colin VK3HBF for backup data on the 19th.

73 de Terry VK5GU