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Hi Jeremy,
I envy you, I would prefer to be sailing, instead of being sitting in my 
office, any way...
I found: Zn = 0� 6.43', hcorrected 86� 5.53', hc =  86� 4.40', the intercept 
1.1' toward. It means that your position was 15� 15.1' N
Isn'it?
I wrote the software that embeds ephemeris and algortihms to compute the 
position.
Would you like to give a try?
Giuseppe

----- Original Message ----- 
From: "Anabasis" 
To: "NavList" 
Sent: Friday, May 16, 2008 9:58 AM
Subject: [NavList 5012] Navigation exercise


>
> Hello Navigators,
>
> I am currently on a ship and was wondering if the members of the board
> would
> like some real-life sights to work out?  I will supply the data and
> then people
> can run the numbers using whatever method and post results.
>
> Here is one from today, and it's a simple LAN problem.
>
> A ship is adrift near the island of Saipan, in the north Pacific.  The
> noon position
> is Lat 15-14'N and Long is 145-40'E on 5/16/08 (ZD -10)
>
> A) Calculate time of LAN, Az of the sun, and approximate Hc.
>
> A sight of the sun (LL) is observed at 1213-40L. Sextant altitude was
> 85-59.0'.  Height of eye was 106 ft, IE is 0.8' off the arc.  Temp was
> 93 deg F Barometer was 1012 MB.
>
> B) Determine Latitude by LAN.
>
> JCA
> >
> 


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