Björn Gimle wrote: > In many cases, eg when the axis isn't exactly at right angles, or > when the object is slightly conical, the two flashes > occur slightly asymetrically in time,and the double period becomes > very obvious. Hello Bjorn: Many thanks for point this out to me.. Ok I will reread material at http://www2.satellite.eu.org/flash/92/node7.html Appreciate if you or anyone point to a good numeric example ( theory vs actual) so that I can step through and figure out it be immensely helpful. I have a whole week's holiday time to burn... Are rotation axis changes all the time or can be held 'constant' for a couple of months? Merry Xmas to U! Clear Sky & more flashes... rgds ykchia ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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