Correlation of Io-B, at Radio Alachua and Nancay, near 100903 0400 UT Wes Greenman reported earlier today his observation of an N narrow bandwidth Io-B event, well below the red high probability region of the Jupiter Maps. I attach a right circular polarization detail from the Nancay spectrum: http://www.obs-nancay.fr/ql_routine_jupiter/B-W/2010/09/J100903.png The top and bottom edges are at 40 and 10 MHz (linear scale). It also shows the N event. I find the correlation of the Nancay spectrum and Radio Alachua is generally good, and I congratulate Wes. The Nancay decametric array is very large, and Wes was using a 2 dipole N-S array. The Nancay spectrum also shows activity (not N) near 0300 UT. Please ignore the Nancay data outside the 18 to 23 MHz band of the Radio Alachua spectrum. You will not be able to observe the entire 10-40 MHz Nancay band with your Radio JOVE Kits, or with spectrographs similar to Wes Greenman's. European observers equipped with spectrographs can observe a good portion of the Nancay band, and perform correlations, for sufficiently strong events. Do not expect to achieve the sensitivity of the Nancay array with only two dipoles. I have been asked to reduce the number of my posts in the Radio JOVE lists. I have posted none in about 2 weeks, and I hope this message is not excessive. You will find plenty of my usually daily messages at: //www.freelists.org/archive/radioastro My thanks for your great tolerance. Victor Messages //www.freelists.org/archive/radioastro Pages http://herrero.freei.me/ Blog http://herrero-radio-astronomy.blogspot.com/
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