Page 126 - Pratik Goksel Seyir Siber Kitap

0
LHA = GHA – Long W LHA = 004 Remove multiples of 360°.
0
A° =3 Nearest whole degree of
A = 2 55’ A.
0
st
2. Reduction table, I entry A’ =55 ' minutes part of A.
0
0
(LAT .LHA) = ( 43 , 004 )
record A, B and Z 1 B is minus if 90° < LHA <
0
B 46 56’ 270".
0
Dec +17 22.5 ’ z, = 87.3 Z1 has the same sign as B.
0
0
F= 64 18.5’ Dec is minus if contrary to
0
F° = 64 LAT
3. From step 1 F’ = 18.5’ Regard F as positive until
F = B + Dec step 7.
nearest whole degree of F.
minutes part of F.
nd
4. Reduction table, 2 entry P =85 nearest whole degree of P.
0
0
0
0
( A , F ) = ……3. , .64 0

record H, P and Z 2 Z 2=85.9

5. Auxiliary table, l entry Corr1 is minus if F < 90
sl
0
(F’,P°)=18.5’ , 85 0 H = 63 56’ & F’ > 29',
0
record corr1 0
Corr1= +19’ or if F > 90
& F < 30'.
corr 2 = +0’ Z 2 nearest whole degree of
nd
6. Auxiliary table, 2 entry Z 2.
A',Z2°) = ……. ……. 0 0 corr 2 is minus if A‘ < 30'.
’
record corr2 Hc= 64 15’

Hc is minus if F is
7. Calculated altitude = negative, and
object is below the
horizon.
Hc = H + corr1 + corr2
Z1has the same sign as B.
Z 2 is minus if F > 90".
0
SI
8. Azimuth, 1 component Z 1= 87.3 If F is negative, Z 2 = 180° — Z 2
nd
2 component Z2= 85.9 Ignore the sign of Z.
0
z =z, + z 2 z = 173.2
N LAT If LHA > 180 , Zn = Z, or
if LHA < 180", Zn = 360° - Z,
S Lat: If LHA > 180°, Zn = 180" - Z, or
True azimuth Zn = 183.8
0
if LHA < 180“. Zn = 180" + Z

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