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d
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3
d
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tilt
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ce
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en
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t
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th
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th
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2.
S
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T
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AND
M
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T
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RO
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C
AL
M
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ASUR
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NT
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h
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ata
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a
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h
u
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p
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llected
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ato
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E
S
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ad
ir
(
Fig
u
r
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2
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.
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h
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[
4
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h
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ata
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ates a
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.
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a
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SO
L
AR
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DE
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s
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r
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o
r
m
o
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elin
g
th
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t
s
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lar
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n
a
h
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izo
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s
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r
f
ac
e
f
ir
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t
an
d
th
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ilted
.
T
o
ac
h
iev
e
th
i
s
,
w
e
w
ill
d
is
cu
s
s
t
h
e
th
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y
o
f
at
m
o
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ate
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tio
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dir
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dif
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e
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dir
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c
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pv
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pv
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
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C
E
I
SS
N:
2
0
8
8
-
8708
Mo
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(
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2559
3
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1
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At
m
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P
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ra
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3
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1
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1
.
E
a
rt
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ra
ph
ic
Co
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T
h
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ce
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d
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ates,
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ates
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ate
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th
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lo
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e.
T
h
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d
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ate
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y
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te
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o
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in
F
ig
u
r
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3
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Fig
u
r
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3
.
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ar
th
g
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ap
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ic
co
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d
in
ates
3
.
1
.
1
.
1
.
L
a
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it
ud
e
I
t
is
th
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an
g
le
b
et
w
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n
th
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eq
u
ato
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o
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itiv
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o
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th
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t
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n
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v
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in
t
h
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th
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e
m
is
p
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[
6
]
.
3
.
1
.
1
.
2
.
L
o
ng
it
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e
L
I
t
is
th
e
an
g
le
t
h
at
th
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lo
ca
l
m
er
id
ian
,
p
ass
i
n
g
th
r
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u
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h
th
e
p
o
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in
q
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esti
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n
,
w
it
h
th
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m
er
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ian
o
f
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ig
in
,
p
as
s
in
g
t
h
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o
u
g
h
th
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to
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o
f
Gr
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n
w
ic
h
.
I
ts
v
al
u
e
i
s
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o
s
itiv
e
i
n
t
h
e
W
est
w
h
ile
it is
n
eg
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tiv
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in
th
e
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s
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o
f
th
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o
r
ig
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n
m
er
id
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[
7
]
.
3
.
1
.
1
.
3
.
Alt
it
ud
e
Z
I
t is th
e
ele
v
atio
n
o
f
a
lo
ca
tio
n
ab
o
v
e
th
e
s
ea
lev
e
l,
m
ea
s
u
r
ed
in
m
eter
s
.
3
.
1
.
2
.
L
o
ca
t
ing
t
he
Su
n P
o
s
it
io
n
T
h
e
ap
p
ar
en
t
m
o
v
e
m
e
n
t
o
f
t
h
e
s
u
n
is
t
h
e
m
o
v
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m
e
n
t
th
at
s
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m
s
,
to
b
e
d
o
n
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i
n
a
d
a
y
,
b
y
t
h
e
s
u
n
f
o
r
an
o
b
s
er
v
er
o
n
t
h
e
E
ar
t
h
i
n
s
ta
lled
o
u
ts
id
e
th
e
p
o
lar
r
eg
io
n
s
[
8
]
.
T
h
e
ap
p
ar
en
t
p
o
s
itio
n
o
f
t
h
e
s
u
n
i
s
id
e
n
ti
f
ied
,
ev
er
y
m
o
m
e
n
t
o
n
t
h
e
d
a
y
an
d
a
y
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r
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y
t
w
o
d
if
f
er
en
t
co
o
r
d
in
ate
s
y
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te
m
s
:
T
h
e
h
o
u
r
s
ce
le
s
tial
co
o
r
d
in
ate
an
d
h
o
r
izo
n
tal
ce
lest
ial
co
o
r
d
in
ates [
9
]
.
3
.
1
.
2
.
1
.
T
he
H
o
urs
Cele
s
t
ia
l C
o
o
rdina
t
e
a)
Su
n
Dec
li
n
atio
n
T
h
e
d
ec
lin
atio
n
is
t
h
e
a
n
g
le
f
o
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m
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b
y
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h
e
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ir
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n
E
ar
th
-
S
u
n
r
elat
iv
e
to
t
h
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E
ar
th
's
eq
u
ato
r
[
1
0
]
.
I
t
is
ex
p
r
ess
ed
in
d
e
g
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ee
s
(
°),
in
m
in
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(
'
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o
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s
(
''
)
.
T
h
is
an
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v
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er
y
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ttle
with
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a
d
a
y
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-
2
3
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4
5
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3
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4
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f
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atio
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[
1
1
]
:
2
3
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4
5
s
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3
6
0
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2
8
4
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3
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5
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2
5
n
(
1
)
b)
Ho
u
r
An
g
le
o
f
t
h
e
S
un
H
T
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t
h
e
a
n
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et
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p
r
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m
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m
er
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p
as
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g
t
h
r
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u
g
h
t
h
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s
o
u
t
h
,
an
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p
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tio
n
o
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th
e
s
u
n
o
n
t
h
e
eq
u
ato
r
ial
p
lan
e
(
F
ig
u
r
e
4
)
.
I
t
m
ea
s
u
r
es
t
h
e
s
u
n
's
p
ath
in
t
h
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s
k
y
[
1
2
]
.
I
t
is
co
u
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o
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y
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th
e
m
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n
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a
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th
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af
ter
n
o
o
n
[
1
3
]
.
I
t in
cr
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s
es b
y
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r
ee
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r
.
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is
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y
th
e
f
o
llo
w
i
n
g
e
x
p
r
ess
io
n
[
6
]
:
(
2
)
1
5
(
1
2
)
H
R
T
S
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
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8708
I
J
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C
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6
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No
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6
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er
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a
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[
9
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.
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a
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ates
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[
1
6
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(
Fig
u
r
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7
)
.
(
1
2
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Fig
u
r
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7
.
Glo
b
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[
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9
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w
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Evaluation Warning : The document was created with Spire.PDF for Python.
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C
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8
8
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Mo
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.
(
3
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En
d
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
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2
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8
8
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I
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–
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(
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ly
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(
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w
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f
(
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th
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.
1
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ent
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[
2
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ased
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h
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.
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u
r
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r
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e
f
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h
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,
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ph,
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v
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Evaluation Warning : The document was created with Spire.PDF for Python.