1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
# -*- coding: utf-8 -*-
# PyMeeus: Python module implementing astronomical algorithms.
# Copyright (C) 2018 Dagoberto Salazar
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from pymeeus.base import TOL
from pymeeus.Uranus import Uranus
from pymeeus.Epoch import Epoch
# Uranus class
def test_uranus_geometric_heliocentric_position():
"""Tests the geometric_heliocentric_position() method of Uranus class"""
epoch = Epoch(2018, 10, 27.0)
lon, lat, r = Uranus.geometric_heliocentric_position(epoch)
assert abs(round(lon.to_positive(), 4) - 30.5888) < TOL, \
"ERROR: 1st geometric_heliocentric_position() test doesn't match"
assert abs(round(lat, 4) - (-0.5315)) < TOL, \
"ERROR: 2nd geometric_heliocentric_position() test doesn't match"
assert abs(round(r, 5) - 19.86964) < TOL, \
"ERROR: 3rd geometric_heliocentric_position() test doesn't match"
def test_uranus_orbital_elements_mean_equinox():
"""Tests the orbital_elements_mean_equinox() method of Uranus class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Uranus.orbital_elements_mean_equinox(epoch)
assert abs(round(l, 6) - 235.517526) < TOL, \
"ERROR: 1st orbital_elements_mean_equinox() test doesn't match"
assert abs(round(a, 8) - 19.21844604) < TOL, \
"ERROR: 2nd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(e, 7) - 0.0463634) < TOL, \
"ERROR: 3rd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(i, 6) - 0.77372) < TOL, \
"ERROR: 4th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(ome, 5) - 74.34776) < TOL, \
"ERROR: 5th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(arg, 6) - 99.630865) < TOL, \
"ERROR: 6th orbital_elements_mean_equinox() test doesn't match"
def test_uranus_orbital_elements_j2000():
"""Tests the orbital_elements_j2000() method of Uranus class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Uranus.orbital_elements_j2000(epoch)
assert abs(round(l, 6) - 234.602641) < TOL, \
"ERROR: 1st orbital_elements_j2000() test doesn't match"
assert abs(round(a, 8) - 19.21844604) < TOL, \
"ERROR: 2nd orbital_elements_j2000() test doesn't match"
assert abs(round(e, 7) - 0.0463634) < TOL, \
"ERROR: 3rd orbital_elements_j2000() test doesn't match"
assert abs(round(i, 6) - 0.772094) < TOL, \
"ERROR: 4th orbital_elements_j2000() test doesn't match"
assert abs(round(ome, 5) - 74.05468) < TOL, \
"ERROR: 5th orbital_elements_j2000() test doesn't match"
assert abs(round(arg, 6) - 99.009058) < TOL, \
"ERROR: 6th orbital_elements_j2000() test doesn't match"
def test_uranus_geocentric_position():
"""Tests the geocentric_position() method of Uranus class"""
epoch = Epoch(1992, 12, 20.0)
ra, dec, elon = Uranus.geocentric_position(epoch)
assert ra.ra_str(n_dec=1) == "19h 13' 48.7''", \
"ERROR: 1st geocentric_position() test doesn't match"
assert dec.dms_str(n_dec=1) == "-22d 46' 13.0''", \
"ERROR: 2nd geocentric_position() test doesn't match"
assert elon.dms_str(n_dec=1) == "18d 44' 18.7''", \
"ERROR: 3rd geocentric_position() test doesn't match"
def test_uranus_conjunction():
"""Tests the conjunction() method of Uranus class"""
epoch = Epoch(1993, 10, 1.0)
conjunction = Uranus.conjunction(epoch)
y, m, d = conjunction.get_date()
assert abs(round(y, 0) - 1994) < TOL, \
"ERROR: 1st conjunction() test doesn't match"
assert abs(round(m, 0) - 1) < TOL, \
"ERROR: 2nd conjunction() test doesn't match"
assert abs(round(d, 4) - 12.7365) < TOL, \
"ERROR: 3rd conjunction() test doesn't match"
def test_uranus_opposition():
"""Tests the opposition() method of Uranus class"""
epoch = Epoch(1780, 12, 1.0)
oppo = Uranus.opposition(epoch)
y, m, d = oppo.get_date()
assert abs(round(y, 0) - 1780) < TOL, \
"ERROR: 1st opposition() test doesn't match"
assert abs(round(m, 0) - 12) < TOL, \
"ERROR: 2nd opposition() test doesn't match"
assert abs(round(d, 4) - 17.5998) < TOL, \
"ERROR: 3rd opposition() test doesn't match"
def test_uranus_perihelion_aphelion():
"""Tests the perihelion_aphelion() method of Uranus class"""
epoch = Epoch(1960, 1, 1.0)
e = Uranus.perihelion_aphelion(epoch)
y, m, d, h, mi, s = e.get_full_date()
assert abs(y - 1966) < TOL, \
"ERROR: 1st perihelion_aphelion() test doesn't match"
assert abs(m - 5) < TOL, \
"ERROR: 2nd perihelion_aphelion() test doesn't match"
assert abs(d - 18) < TOL, \
"ERROR: 3rd perihelion_aphelion() test doesn't match"
epoch = Epoch(2009, 1, 1.0)
e = Uranus.perihelion_aphelion(epoch, perihelion=False)
y, m, d, h, mi, s = e.get_full_date()
assert abs(y - 2009) < TOL, \
"ERROR: 4th perihelion_aphelion() test doesn't match"
assert abs(m - 2) < TOL, \
"ERROR: 5th perihelion_aphelion() test doesn't match"
assert abs(d - 23) < TOL, \
"ERROR: 6th perihelion_aphelion() test doesn't match"
def test_uranus_passage_nodes():
"""Tests the passage_nodes() method of Uranus class"""
epoch = Epoch(2019, 1, 1)
time, r = Uranus.passage_nodes(epoch)
y, m, d = time.get_date()
d = round(d, 1)
r = round(r, 4)
assert abs(y - 2028) < TOL, \
"ERROR: 1st passage_nodes() test doesn't match"
assert abs(m - 8) < TOL, \
"ERROR: 2nd passage_nodes() test doesn't match"
assert abs(d - 23.2) < TOL, \
"ERROR: 3rd passage_nodes() test doesn't match"
assert abs(r - 19.3201) < TOL, \
"ERROR: 4th passage_nodes() test doesn't match"
|
