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    Re: USCG Student Sample Problems #1, #2 and #3
    From: Peter Hakel
    Date: 2013 Apr 25, 18:15 -0700
    Hello Kermit, Greg,

    I just realized that this difference was caused by a typo on my end: my UT was off by 18 minutes.  I mindlessly hit TAB without zeroing out cell E2 (= Minutes of UT) - because all my other almanac spreadsheets already have 00 preset in there... except this Polaris one!

    So, indeed Lat: N 23d 23.6' and all is well, see attached.  :-)  Thanks for digging into this.


    Peter Hakel



    From: Antoine Couëtte <antoine.m.couette{at}club-internet.fr>
    About POLARIS... and this concerns Peter Hakel this time (are you here Peter ??)

    In
    " : http://fer3.com/arc/m2.aspx/Group-Project-USCG-student-sample-problems-Couëtte-apr-2013-g23602 "
    and from Auxiliary Position 24°N / 143°40' , observing Polaris at UT 05:00:31 at Sextant Height 23°04'1 (corrected for only Instrument Error), I got a Geocentric Height Ho = 22°52'0 (I concur with Greg's published value) and an intercept of -36.4' (Away) in Azimuth 359°5, hence an Observed Latitude of N 23°23'6 at time of observation UT 05:00:31 (or a shifted latitude of N 23°23'7 at UT 05:00:00).
    RE
    ": http://fer3.com/arc/m2.aspx/Group-Project-USCG-student-sample-problems-Couëtte-apr-2013-g23607 " to which I did not read a reply to.
    Peter, while all our other intercepts fully match to +/- 0.1 ' , I still can not reconcile this Latitude I found of 23°23'6 (or 23°23'7) with your value of 23°25'5 published in
    " http://fer3.com/arc/m2.aspx/Group-Project-USCG-student-sample-problems-PeterHakel-apr-2013-g23606 ".
    Any cue from your part, Peter ?

    File:


    File: 123694.polaris_corr.xls
       
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