FUNcube-1 updated spin graph

Spin Period
10 Aug 2018 = 49.8 seconds (from averaged panel temperatures)
11 Aug 2018 = 48.6 seconds (from averaged panel temperatures)
12 Aug 2018 = 46.6 seconds (from averaged panel temperatures) – VK3HBF
13 Aug 2018 = 45.5 seconds (from averaged panel temperatures)
14 Aug 2018 = 44.0 seconds (from averaged panel temperatures)
15 Aug 2018 = 43.4 seconds (from averaged panel temperatures)
16 Aug 2018 = 42.1 seconds (from averaged panel temperatures)

Thanks to Colin VK3HBF for backup data on Sunday. Funcube-1 continues to steadily speed up.
73 de Terry VK5GU.

FC1 – spin period update

3 Aug 2018 = 57.5 seconds (from averaged panel temperatures)
4 Aug 2018 = 55.8 seconds (from averaged panel temperatures)
5 Aug 2018 = 54.2 seconds (from averaged panel temperatures)
6 Aug 2018 = 54.2 seconds (from averaged panel temperatures)
7 Aug 2018 = 51.4 seconds (from averaged panel temperatures)
8 Aug 2018 = 51.5 seconds (from averaged panel temperatures)
9 Aug 2018 = 50.6 seconds (from averaged panel temperatures)

Thanks to Colin VK3HBF for backup data when I wasn’t available.
73 de Terry VK5GU

AO-73 August 2nd Update

Greetings to the Group,

Spin Period

27 July 2018 = 63.8 seconds (from averaged panel temperatures)
28 July 2018 = 62.8 seconds (from averaged panel temperatures)
29 July 2018 = 61.0 seconds (from averaged panel temperatures)
30 July 2018 = 60.1 seconds (from averaged panel temperatures)
31 July 2018 = 59.9 seconds (from averaged panel temperatures)
01 Aug 2018 = 58.8 seconds (from averaged panel temperatures)
02 Aug 2018 = 58.5 seconds (from averaged panel temperatures)

Currently there appear to be two “inertial forces” influencing the spin period.
1. The magnetic forces produced by the PA current when the transponder is ON at the weekend, reacting with the earth’s magnetic field.
2. The Propeller Effect as the eclipse periods shorten, now at 20 minutes per orbit.
AO-73 will be in full sunlight on or around 8th September.

73
de Colin VK5HI.

AO-73 26th July

Greetings to the Group,

Spin Period

20 July 2018 = 68.9 seconds (from averaged panel temperatures)
21 July 2018 = 67.4 seconds (from averaged panel temperatures)
22 July 2018 = 66.0 seconds (from averaged panel temperatures)
23 July 2018 = 65.6 seconds (from averaged panel temperatures)
24 July 2018 = 65.5 seconds (from averaged panel temperatures)
25 July 2018 = 65.4 seconds (from averaged panel temperatures)
26 July 2018 = 64.3 seconds (from averaged panel temperatures)

AO-73 is showing a tendency to very slowly increase in speed of rotation.

73
de Colin VK5HI.

AO-73 – 19th July 2018

Spin Period

13 July 2018 = 71.9 seconds (from averaged panel temperatures)
14 July 2018 = 71.1 seconds (from averaged panel temperatures)
15 July 2018 = 69.6 seconds (from averaged panel temperatures)
16 July 2018 = 69.3 seconds (from averaged panel temperatures)
17 July 2018 = 69.3 seconds (from averaged panel temperatures)
18 July 2018 = 69.1 seconds (from averaged panel temperatures)
19 July 2018 = 68.8 seconds (from averaged panel temperatures)

AO-73 is showing a tendency to very slowly increase in speed of rotation.

FUNCube-1 update – spin period

Spin Period

06 July 2018 = 73.1 seconds (from averaged panel temperatures)
07 July 2018 = 72.7 seconds (from averaged panel temperatures)
08 July 2018 = 72.1 seconds (from averaged panel temperatures)
09 July 2018 = 72.7 seconds (from averaged panel temperatures)
10 July 2018 = 72.2 seconds (from averaged panel temperatures)
11 July 2018 = 72.6 seconds (from averaged panel temperatures)
12 July 2018 = 71.8 seconds (from averaged panel temperatures)

73
de Colin VK5HI.

FUNCube-1 – update spin period

29 June 2018 = 74.0 seconds (from averaged panel temperatures)
30 June 2018 = 73.3 seconds (from averaged panel temperatures)
01 July 2018 = 72.7 seconds (from averaged panel temperatures)
02 July 2018 = 73.5 seconds (from averaged panel temperatures)
03 July 2018 = 72.4 seconds (from averaged panel temperatures)
04 July 2018 = 73.3 seconds (from averaged panel temperatures)
05 July 2018 = 73.6 seconds (from averaged panel temperatures)

73
de Colin VK5HI.

FUNCube-1 – Spin Period Update

22 June 2018 = 74.1 seconds (from averaged panel temperatures)
23 June 2018 = 73.8 seconds (from the sun sensors)
24 June 2018 = 71.2 seconds (from averaged panel temperatures)
25 June 2018 = 72.5 seconds (from averaged panel temperatures)
26 June 2018 = 73.5 seconds (from averaged panel temperatures)
27 June 2018 = 73.7 seconds (from averaged panel temperatures)
28 June 2018 = 74.6 seconds (from averaged panel temperatures)

The spin has been a touch variable this week which may be due
to increased transponder activity, but cannot quantify that.

73
de Colin VK5HI.

FUNCube-1 – updated spin graph


Spin Period
08 June 2018 = 80.3 seconds (from averaged panel temperatures)
09 June 2018 = 78.2 seconds (from averaged panel temperatures)
10 June 2018 = 77.2 seconds (from averaged panel temperatures)
11 June 2018 = 77.9 seconds (from averaged panel temperatures)
12 June 2018 = 79.3 seconds (from averaged panel temperatures)
13 June 2018 = 78.7 seconds (from averaged panel temperatures)
14 June 2018 = 79.5 seconds (from averaged panel temperatures)

73
de Colin VK5HI.

FUNCube-1 – updated spin graphic

Spin Period

01 June 2018 = 80.4 seconds (from averaged panel temperatures)
02 June 2018 = 81.5 seconds (from averaged panel temperatures)
03 June 2018 = 79.4 seconds (from averaged panel temperatures)
04 June 2018 = 78.4 seconds (from averaged panel temperatures)
05 June 2018 = 78.9 seconds (from averaged panel temperatures)
06 June 2018 = 77.9 seconds (from averaged panel temperatures)
07 June 2018 = 78.8 seconds (from the Sun Sensors)

73
de Colin VK5HI.