#235 Implement O-C analysis

Feature
open
Algorithms (37)
8
2017-03-29
2010-11-27
David Benn
No

Implement observed-calculated (O-C) analysis.

VSS has a good explanation of this:

http://www.variablestarssouth.org/index.php?option=com_content&view=article&id=59&Itemid=49

See also Grant Foster's "Analyzing Light Curves" and John Percy's "Understanding Variable Stars" books.

Discussion

  • David Benn

    David Benn - 2011-09-23
    • priority: 5 --> 9
     
  • David Benn

    David Benn - 2011-09-30
    • priority: 9 --> 8
     
  • mikeu

    mikeu - 2011-09-30

    This would be a great feature to have.

     
  • David Benn

    David Benn - 2015-07-31

    O-C was asked about in the July 2015 CHOICE course.

     
  • David Benn

    David Benn - 2015-07-31
    • Description has changed:

    Diff:

    --- old
    +++ new
    @@ -1,4 +1,4 @@
    -Implemented observed-calculated \(O-C\) analysis.
    +Implement observed-calculated \(O-C\) analysis.
    
     VSS has a good explanation of this:
    
     
  • David Benn

    David Benn - 2017-03-29

    May be able to obtain extrema info from a Fourier model. Multiple extrema from a polyfit would also be nice.

     
  • David Benn

    David Benn - 2017-03-29

    Andrew Pearce has expressed interest in O-C and also pointed me to a Nov 2012 VSS article about model light curve fitting.

     

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No, thanks