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Hi again Jeremy, I graphed your shots and they were quite scattered
but I did notice 3,4, and 5 were nearly st. line. My average yielded
GMT 08-04-48 and Lunar GMT yielded 08-03-03 a 1m 45 sec difference and
00.8' error. I suspect the proper method would involve determining the
slope Ds over GMT and moving that line amidst the scatter to determine
line of best fit. I will try that next and thanks for input!
Mike Burkes

On Nov 13, 1:37�am, Anabasi...@aol.com wrote:
> Hello all,
>
> Fortune has not been kind to me this trip in the navigation �department. �The
> ship is stuck in Chinhae, ROK at the moment and so I won't �likely be getting
> any Celestial navigation in anytime soon. �The haze and �often cloudy weather
> this time of year will hamper even my lunar efforts. � Fortunately, we face
> south, so there was a nice opportunity to shoot a set of �lunars the other day.
> �Here is the data for those who want to play with the �number.
>
> �As a side bar, without everyday Internet access, I am relying on �Arthur
> Pearson's spreadsheet to run the calculations. �I have Bruce �Starke's tables
> with me, but I have been too busy to dedicate the time required �to reduce with
> them.
>
> Chinhae Lunar
>
> Sun to Moon (near limb obviously)
>
> Position: Lat 35 deg 6.4' North
> � � � � �Long 128 deg 41.3' �East
>
> Date: 5 November 2008 (ZD -9)
> Index error 0.7' on the arc
>
> Ds � � � � � � � � Local Time of sight
>
> 80 deg 05.6 � �1701-41
> 80 deg 06.9 � �1702-39
> 80 deg 06.8 � �1704-09
> 80 deg 06.0 � �1704-51
> 80 deg 05.2 � �1705-25
>
> I'm afraid it's not a very good "grouping" but given the low altitude of �the
> sun and haze, it was hard to get the shades correct for a good arc and there �
> might have been some non-standard refraction as well. �My straight �averaging
> of Ds and time gave me a GMT of 08h 4m 55s with an error of 1min 11 �seconds
> fast (0.5' error in observation). �I hope other reduction methods �are at
> least close.
>
> Jeremy
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