Montana State University Solar REU Program 2010
Dustin Hickey
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Week 6
Week 7

Friday, July 9

Thursday, July 8

Wednesday, July 7

I ran into some problems with the program in the April 2002 area. I decided to try and fix the code so I wouldn't have to avoid these problem areas. Sometimes the program won't detect coronal holes when they should be there. This caused my program to crash when it couldn't find any coronal holes for a given time interval. I changed the code so that if it didn't find any it would raise the threshold to 0.67 times the quiet sun instead of 0.5 times it. This has worked so far but it is possible it may not work in every case. If RT is printed next to the hour key on the graph then that means that the threshold has be raised for that time interval. Below are more dates I have been looking a t while focusing on 360 degrees longitude from April to July. There are only a couple of eit images in the 6-18 to 6-20 date range so I was unable to get data from that time with my program. The coronal holes and open magnetic field regions seem to be more to the right, higher longitude, than the ones from some of the previous months.

Tuesday, July 6

I continued to look at the same area as last week. I tried to look at November, October, and September of 2001. I was unable to get any useful data from November. I was able to get good maps from October. What is interesting about the October data is that there appears to be a coronal hole in the same area I've been looking at, or at least near it, but it doesn't match up with an open field region. It persists for a few days at least. When looking at September I couldn't get the data from the right time to work out so I put a map from near the right time. There doesn't appear to be an open field region in the area I've been focusing on although there is one near it.