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    Re: Compass Check
    From: Greg Rudzinski
    Date: 2016 Mar 20, 18:00 -0700

    For 9:07 UT at Hartlepool I get a deviation of 35.6° west based on image compass card shadow -180°.° .

    165° magnetic compass bearing of Sun

    -1.5° west variation 

    163.5°

    127.9° true

    35.6° west deviation (which is excessive)

    Greg Rudzinski

    From: Greg Rudzinski
    Date: 2016 Mar 20, 17:28 -0700

    Bill,

    If you have a GPS position and UT time of image then the reflected Sun or shadow on compass card can be checked with an azimuth reduction. 

    Greg Rudzinski

    From: Bill Lionheart
    Date: 2016 Mar 20, 17:18 -0700

    Took this this morning at 0907 in Hartlepool and thought folks might be interested. There is a huge error as we are next to a massive steel column that secures the pontoon. It should be 306 True 307 Magnetic.



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