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Lunars at Sea on 28 May 2008

    Here are a few lunars I shot at sea.  The first is the conventional 3-
sight method, and the rest are just straight Lunar distance
observations with calculated Ho�s for the moon and body.  All shots
were with an IE of 0.0, and Height of eye of 106�.  Time is UTC.  LDs
is sextant Lunar distance, LDc is computed Lunar distance, and LDo is
corrected sextant Lunar distance .

PM Lunars:

1)  Time 00h 15m 25s  LDs= 91deg 38.8� (near limb)
          00h 16m 15s Hs 27deg 10.9� of the upper limb of the moon
          00h 17m 22s Hs 61deg 49.4� of the upper limb of the sun
T/P was 88 deg F, 1010 mb.  0015 DR is Lat 15deg 13.5�N, Long 145deg
28.6�E

Frank�s pages gives me a calculated LD of 91deg 20.8� compared to a
LDo 91deg 21.5�  giving a 0.7� arc error or 20.0� Longitude error

2)  Same place, bodies, and corrections but with the following time and
data (sun/moon lunar):
Time: 00h 11m 16s LDs = 91 deg 41.0�
Frank�s page gives me LDc = 91deg 22.9� and a LDo of 91deg 24.3�
giving a 1.4� of arc error and 40.6� longitude error.

AM Lunars (T/P 84 F & 1010 mb, HE 106�, IE 0.0)  All Moon to Jupiter
Lunars (far limb)

1)  DR Lat 15deg 04.9�N Long 145 deg 04.1� E.  LDs 54 deg 39.8� at 18h
44m 03s.  Frank�s page gave me a LDc of 54deg 03.7� and a LDo of 54deg
04.0� giving an error of 0.3� of arc or 7.2� error in Longitude (my
best one of the lot)

2)  DR Lat 15deg 04.0�N Long 145deg 04.4�E.  LDs 54deg 40.4� at 18h 48m
10s.  Frank�s page gave me a LDc of 54deg 06.0� and a LDo of 54-05.3�
for an error of 0.7� of arc or 20.8� error in Longitude.

3)  DR Lat 15deg 03.4�N Long 145deg 04.6�E  LDs 54deg 42.5� at 18h 50m
45s.  Frank�s page gave me a LDc of 54 deg 07.5� and LDo of 54-07.9�
for an error of 0.4� of arc or 13� error in Longitude.

Jeremy
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