Hi Steve, Thank you for your questions. Io-D is very interesting, but rarely observable above 16 MHz. Io-D and Io-C are radiated from the southern Jovian hemisphere, near the southern auroral region. Io-A and Io-B are radiated from the northern hemisphere. Sometimes it shows as a very well defined arc. For a brief discussion of the arcs, with reference to the literature and arc models, see: http://herrero.freei.me/Io-D/index.html In this Io-D the arcs are more diffuse, and different in the Ahead and Behind STEREO Observatories. It is not always visible from both spacecraft. Some of the Radio and Astronomy activities at Pueblo High School, in Tucson Arizona, are described at: http://herrero.freei.me/pueblo3/ http://herrero.freei.me/pueblo2/ I am an unpaid volunteer at Pueblo HS, helping with Science and Technology projects. The Radio Club is currently very interested in projects with Amateur and Educational Satellites. The German Amateur Satellite organization is planning to place an AMSAT in Mars Orbit. The European Space Organization is developing a European Student Moon Orbiter (ESMO). Swisscube is a currently active Cubesat (tiny 1 kg, 1 cubic decimeter satellite). Some Radio Amateurs in the Tucson area are very experienced with Moon Bounce (EME) communications, and have 10 meter diameter dishes. We hope to participate in some of those projects. I am very glad of your progress in the detailed analysis of February 14 data. Thanks. Victor ------------------------------ On Tue, Mar 2, 2010 at 11:38 AM, E.S.McCauley <esmac@xxxxxxxxxx> wrote: > > > Hi Victor, > what's the significance of this Io-D? > > Steve > making progress on > 100214 stuff. How's the > dipoles situation at > Tuscon HS? > > > > Victor Herrero wrote: > > > > Jovian Io-D activity 2010 February 27 > > Please see: > http://herrero-radio-astronomy.blogspot.com/ > > Victor > > __._,__ >