June 22, 2009

These notes detail the status of our prediction of the structure of the corona for the total solar eclipse of July 22, 2009. We will use our three-dimensional magnetohydrodynamic model to predict the structure of the magnetic field and plasma in the solar corona. We will generate images of the predicted magnetic field lines, the predicted polarization brightness (that is typically measured during eclipses), and predictions for the emission of EUV and X-rays in the corona.

June 26, 2009

We plan to post a preliminary prediction on this web site on or about July 12, 2009 (10 days before the eclipse), and a final prediction on or about July 17, 2009 (5 days before the eclipse).

July 3, 2009

We started a calculation on the NASA supercomputer Pleiades with a mesh of 201x191x362 points with magnetic field data for Carrington rotation 2084 (May 30 - June 26, 2009). This will get us ready to make a run for the preliminary prediction.

July 6, 2009

The run for for Carrington rotation 2084 completed. We are analyzing this run to launch a new run for the preliminary prediction.

July 9, 2009

We started the run for the preliminary prediction on Pleiades with a mesh of 221x191x362 points, with (slightly updated) magnetic field data from Carrington rotation 2084 (May 30 - June 26, 2009).

July 13, 2009

The preliminary prediction has been posted to the web site!

July 15, 2009

We started the simulation for the final prediction with updated magnetic field measurements from MDI up to July 11, 2009. Unfortunately, we could not use even more recent data because SOHO had a malfunction that interrupted the supply of MDI magnetograms. (Fortunately, SOHO appears to have recovered!)

July 17, 2009

Our run is taking longer to complete than anticipated. The final prediction will be posted later than anticipated. Currently our estimate is that it will be posted on or around July 19, 2009. Please check this page for updated estimates.

July 19, 2009

The final prediction has been posted to the web site! Enjoy!