Subject: AgileGuider1.0b6 is now available

From: Russell Owen

Submitted: Fri, 16 Apr 2010 14:00:29 -0700

Message number: 1178 (previous: 1177, next: 1179 up: Index)

AgileGuider 1.0b6 is now available from the usual location:
<http://www.apo.nmsu.edu/35m_operations/TUI-images/files/>

Changes:
- Centroid Radius and Max Corr are now in arcsec.
- Removed the Corr Frac tuning parameter: the upper limit of measured  
error was already the centroid radius.
- Removed the Max Corr tuning parameter. Adopted the hub guider's  
algorithm for determining how much error to correct: the correction  
fraction is larger for a better centroid fit and the upper limit is  
the centroid radius.
- Added the version number to the window name and the folder name so  
that it is easy to have multiple versions installed at the same time.

More info: I followed Russet's suggestion and looked at how the hub  
guider decides how much error to correct. It uses a table of centroid  
uncertainty vs. correction factor, so I adopted that (but reduced the  
maximum correction fraction from 0.8 to 0.7) and ditched the user- 
settable parameter. This removes some potentially confusing settings  
and may improve performance. We will see.

I encourage you to leave 1.0b5 installed when you install this one.  
That way you can revert if you need to. Both will show up in TUI at  
the same time (for folks at APO the one without the version # in the  
name will be 1.0b5; for folks at UW: I made a minor edit to 1.0b5 so  
that both versions have a version # in the TUI Guide window).

-- Russell

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