New Data Sets Coming Soon

[Tom Droege <tdroege2@earthlink.net>]

I was finally able to reduce data from a set of exposures taken where some 
stars appear in 36 different positions in the field in a 6 x 6 position array.

As might have been expected, there is an obvious pattern.  The stars are 
fainter in the middle of the field.  This indicates that we over compensate 
in the flat field operation, I think.  I will await experts to look at the 
data.  The variation is about .2 mag.

There are two data sets available, each with 36 exposures and which include 
darks and a flat made with different data.  So you can use the image to 
create the flat or use the flat on the disk.

Due to an initialization problem, there are only 35 good images.  I will 
try to get data which corrects this, but winter is here (light snow is 
falling now), and there may be no more good data.

If you want this data, ask for set 1, set 2 or both.  I am glad to give you 
both, but some of you might just want to look.  In fact, I hope to get a 
few more sets before actually sending out this data.  Some of you will get 
more than you ask for.

Ask in the usual way, including your name and address.  It does save me 
some time.  I do not keep a standard address book on my computer.  That way 
villains cannot use it to bother my friends.

Tom Droege