Subject: Re: Cluster RAPID electron data needed Date: Tue, 02 Apr 2002 20:06:02 -0500 From: Zong To: ".jolene pickett" Dear Dr. Pickett Thank you for your offer, I would like to participate your study, it is fascinating! Today, I have ploted proton flux together with electron data, as you can see in the attachment. The two energy channels are 30-100 keV and above 100 kev, which I already maked in the new plots. Some points can be made: 1. clear anti-correlation between electron and proton, as you can see in the plots-- one marks peaks in the electron plot and one marks the local minimum flux. ( what is that ?, this is a significant point need to think about for my view) 2. correlation with E_dusk electric field, I have not E_z field data in hand yet. We have raw data for Mar 25, 2002 in hand, I will plot them in the coming days. 3. The relation with substorm, I donot know yet since the LANL web is crashed down yesterday (may need some days to recover). However, the strong anti-correlation between electron and proton flux is unlikely a substorm effect I have downloaded all you figures, hopefully, I can get some idea from idea! Zong ".jolene pickett" wrote: > Dear Dr. Zong, > > Thank you so much for your plots. They look very interesting, > and as you say, with structures. Can you tell me what two > energy bands are plotted. > > If you would like to see our data for these two days, go > to: > > http://www-pw.physics.uiowa.edu/~jsp/cluster/triggers > > There are also some EFW plots in this folder too. For your > information, our WBD wave data is sent directly to the > ground rather than recorded on board. That is why we > get such a high data rate over high frequencies and get > the time series (rather than sending down the spectral > components as Whisper does). Also because of our > high data rate and the fact that DSN has to dedicate > one antenna to each spacecraft in order to get our data > real time simultaneously on all spacecraft, we often will > only get data from one or two spacecraft, sometimes > 3 and 4. So on July 9, we only have the 2. On Oct. > 21, just the 3. I am also looking at some data we just > got from March 25. It evidently looks interesting from > an IMAGE point of view, so we'll probably proceed > with it. It is March 25, 2002, 1310-1430. We have > data from all 4 some of the time, but not all of it. I > don't know how quickly you get your data, but you > might look at that one as well. > > It looks like RAPID may help us explain what we > see in the wave data, so if it is OK with you, I will > probably add you as a Co-Author on the COSPAR > invited paper, along with Tim Bell of Stanford, Mohammed > Boudjada of Austria, and maybe someone from Whisper > or EFW, to get densities. Then there will be someone > from IMAGE, probably Mark Adrian of MSFC. > > Thanks again. > > Jolene > > Zong wrote: > > > Dear Dr. Pickett > > > > Attached with one more plots -- > > an electron spectra vs time for Oct 21 for your reference. > > > > Zong > > _____________________________________________________ > > "Zong" Q.-G. Zong, Center for Space Physics, Boston University > > 725 Commonwealth Avenue, Boston, Massachusetts 02215 > > Tel:617 353 7448, Fax:617 353 6463, http://people.bu.edu/zong/ > > > > ------------------------------------------------------------------------ > > Name: 1021_e.ps > > 1021_e.ps Type: Postscript Document (application/postscript) > > Encoding: 7bit -- _____________________________________________________ "Zong" Q.-G. Zong, Center for Space Physics, Boston University 725 Commonwealth Avenue, Boston, Massachusetts 02215 Tel:617 353 7448, Fax:617 353 6463, http://people.bu.edu/zong/ --------------------------------------------------------------------- Name: 10_21.eps 10_21.eps Type: Postscript Document (application/postscript) Encoding: 7bit Name: 1021_4b.eps 1021_4b.eps Type: Postscript Document (application/postscript) Encoding: 7bit Name: 1021_4a.eps 1021_4a.eps Type: Postscript Document (application/postscript) Encoding: 7bit