Tools: Reaction times

From: GlocalNet (bg_26934@glocalnet.net)
Date: Sat Sep 29 2007 - 04:33:43 EDT

  • Next message: Alberto Rango: "4542 SATOBS 28 SEP 2007."

    For my secondary interest, asteroidal star occultations, I got a tip
    on the mailing list I use for another prediction site, where I found
    a Java tool to measure your reaction time, "personal equation",
    for a one-time event:
    http://www.popastro.com/sections/occ/occdir/occpetest.htm
    
    For our common hobby, there can be applications for flash timings.
    Perhaps not the regular ones, but there are exceptions:
    1. When you make positional obs of a satellite only ssen at short flashes.
    2. If you time "all" flashes, without first getting a feeling for the 
    regular period, you can estimate the error in the first few timings.
    3. If there are spurious secondary flashes and you want to get accurate 
    offsets from primary maxima.
    4. When observers in different locations see the same pass, accurate timings 
    can determine the direction of rotation, and if there are one, two or more 
    flashes per rotation.
        This has been done with Superbird A, I believe.
    
    My own results surprised me - they were very consistent, but longer than 
    expected (0.50s), and the reapperance of the star was timed only slightly 
    later (0.55s) than the disappearance.
    
    /Björn
    
    
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