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I need advice on the sextant height corrections.

I also did all the calculations on my Palm TX using CelestNav
software.
It gives the option of rounding or not rounding the assumed position.
When I set it to round, I'm happy to see that it gives an identical Hc
to mine. The GHA was a bit different between the Palm and the table
(336 23.6' on the Palm, 336 23.4' from the nautical almanac with v
correction.). LHA still works out the same though and the final Hc on
the Palm is +14 52.9', while I had +14 53'.

The difference is in observed height (Ho). Applying all the
calculations, I had:

Hs=15 15.3'
-2.5' for 7 feet Dip (I did it using a formula too and it came to
-2.6')
-1.2' index correction
Ha=15 11.6'
-3.5' for app. altitude
+0.3' additional correction for Venus on May 13, 1993

Final Ho=15 08.4'

However, my Palm program gave Ho as Ho=15 10.3' resulting in a LOP 2nm
different than mine.

That 2 minutes off gave a difference of 2nm. Am I splitting hairs, or
did I do something wrong?

I want to understand the sextant corrections before I move on since I
have to do them for every problem.

... I'm still looking to see what happened with the moon. I'll figure
that one out soon.




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