[amsat-bb] Re: Hot solar panels

2011-01-19 Thread Wouter Weggelaar
Hi All, Indeed, Delfi-C3 has quite high temperature extremes on the Cells. This data can also be viewed in the IV-curve display of RASCAL (it displays current temperature of the cell) The temperature is measured with thermistor strips. However, we use space-grade cells which can handle the temper

[amsat-bb] Re: Hot solar panels

2011-01-18 Thread GW1FKY
Hi folks, Delfi - C3 uses partial deployed solar panels and whilst having other on board problems is still sending data which I monitor on a regular basis. Remember also that it does not use batteries and is therefore only functional when in sunlight. Temperatures must be quite high on such a s

[amsat-bb] Re: Hot solar panels

2011-01-16 Thread G0MRF
In a message dated 16/01/2011 18:50:42 GMT Standard Time, bruni...@usna.edu writes: For what it is worth, we have just completed our in-depth thermal analysis of the 4 deployable solar panels on our cubesat (Psat) and were shocked to learn how hot they will get. Probably 90C or nearly boi