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    Re: Index checks with laser and without
    From: Ken Muldrew
    Date: 2007 Jan 04, 09:08 -0700

    On 3 Jan 2007 at 23:45, Alexandre E Eremenko wrote:
    
    > What makes it really strange is that the error
    > when present is usually constant in long series.
    > So averaging does not help. I would almost say
    > that it is constant during a day... though this is
    > not always so. It looks like it depends on...
    > weather:-) Thopugh I understand that this idea
    > is absurd. Some new kind of strong abnormal refraction
    > in Indiana?
    
    Does this intermittent error only show up when you take lunars from a
    particular location (e.g. your balcony) or have you also suffered from it
    in other locations?
    
    Ken Muldrew.
    
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