25 Feb 2011
13 Mar 2011
02 Aug 2011 Re: FO-29 Hit by solar flare? From: Frank Wiesenmeyer To: Mineo Wakita Date: Fri, 25 Feb 2011 18:34:59 -0600 I have been watching FO-29 telemetry very closely since we heard that the sun was erupting in solar flares. I have noticed that Channel 4C (Battery Voltage) is showing some unusual behavior since February 17, 2011 now reaching values higher than 17 volts. The most significant event is that the channel 4C makes an error now when it reaches A0 ( it reads E0). If you change the E to A, the readings makessense. This error in the Telemetry system could be related to the unusualsolar activity we have had recently. The additional radiation exposure may have damaged one of the Integrated Circuits in the Telemetry System. I am enclosing a copy of my most recent telemetry sheet and the plot of channel 4A solar array current. Notice that the SPIN PEREIOD has become smaller in the past week, dropping from 14 minutes to only 10 minutes and the data is changing much more. I have also noticed more polarization changes in the 435.800 MHz biacon. Normally, the polarization (V or H) changes very little during a 15 minute pass. Now it is changing 4 or 5 times during the pass as observed with my two yagis, one vertical and the other horizontal. The good news is that the battery is in very good condition and recovers very quickly as it comes out of eclipse and reaches higher voltages than ever.
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Decatur, IL USA Frank K9CIS 290km South West of Chicago Re: Hope U are OK From: Frank Wiesenmeyer To: Mineo Wakita Date: Sun, 13 Mar 2011 19:37:14 -0500 Mineo: With all the bad news of the earthquake and Tsunami from Japan, I have been worried about you and your family. I hope you are OK and your house and antennas are still standing. When you get the opportunity, please let me know your situation. Is there anything I can do to help? Your friend in USA, Frank K9CIS PS. FO-29 is spinning faster these days as the sun is more active. Re: Hope U are OK From: Mineo Wakita To: Frank Wiesenmeyer Date: 13 Mar 2011 Hi Frank, I and my wife, daughters are safe. Because there is it on the hill, the house is safe. Do not worry. Thank you. JE9PEL, Mineo Wakita from Yokohama Japan
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Re: FO-29 status 8-2-11 From: Frank Wiesenmeyer To: Mineo Wakita Date: Tue, 2 Aug 2011 17:10:59 -0500 Hello Mineo: Enclosed recent FO-29 Telemetry report. All data looks very good except lot of Fs in place of Bs in temperature frames. Example: 82 60 97 91 F1 8A F9 F6 F8 F9 F5 21:24:03 7F 63 9E 96 F1 47 F8 F5 F7 F8 F6 21:34:47 SOLAR ARRAY graph attached. Hope you and family are doing well and not affected too much by earth quake. 73 for now, Frank K9CIS From: Mineo Wakita To: Frank Wiesenmeyer Hi Frank, Thanks for your FO-29 Solar Array Current Graph update. We, Japanese restores from the damage of this Earthquake and Tsunami by all means. However, the damage of Fukushima Daiichi Nuclear Power Station is serious accident. Thank you for your kind encouragement. JE9PEL, Mineo Wakita from Yokohama Japan
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