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
|
# -*- 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.Neptune import Neptune
from pymeeus.Epoch import Epoch
# Neptune class
def test_neptune_geometric_heliocentric_position():
"""Tests the geometric_heliocentric_position() method of Neptune class"""
epoch = Epoch(2018, 10, 27.0)
lon, lat, r = Neptune.geometric_heliocentric_position(epoch)
assert abs(round(lon.to_positive(), 4) - 345.3776) < TOL, \
"ERROR: 1st geometric_heliocentric_position() test doesn't match"
assert abs(round(lat, 4) - (-0.9735)) < TOL, \
"ERROR: 2nd geometric_heliocentric_position() test doesn't match"
assert abs(round(r, 5) - 29.93966) < TOL, \
"ERROR: 3rd geometric_heliocentric_position() test doesn't match"
def test_neptune_orbital_elements_mean_equinox():
"""Tests the orbital_elements_mean_equinox() method of Neptune class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Neptune.orbital_elements_mean_equinox(epoch)
assert abs(round(l, 6) - 88.321947) < TOL, \
"ERROR: 1st orbital_elements_mean_equinox() test doesn't match"
assert abs(round(a, 8) - 30.11038676) < TOL, \
"ERROR: 2nd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(e, 7) - 0.0094597) < TOL, \
"ERROR: 3rd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(i, 6) - 1.763855) < TOL, \
"ERROR: 4th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(ome, 5) - 132.46986) < TOL, \
"ERROR: 5th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(arg, 6) - (-83.415521)) < TOL, \
"ERROR: 6th orbital_elements_mean_equinox() test doesn't match"
def test_neptune_orbital_elements_j2000():
"""Tests the orbital_elements_j2000() method of Neptune class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Neptune.orbital_elements_j2000(epoch)
assert abs(round(l, 6) - 87.407029) < TOL, \
"ERROR: 1st orbital_elements_j2000() test doesn't match"
assert abs(round(a, 8) - 30.11038676) < TOL, \
"ERROR: 2nd orbital_elements_j2000() test doesn't match"
assert abs(round(e, 7) - 0.0094597) < TOL, \
"ERROR: 3rd orbital_elements_j2000() test doesn't match"
assert abs(round(i, 6) - 1.770101) < TOL, \
"ERROR: 4th orbital_elements_j2000() test doesn't match"
assert abs(round(ome, 5) - 131.74402) < TOL, \
"ERROR: 5th orbital_elements_j2000() test doesn't match"
assert abs(round(arg, 6) - (-83.6046)) < TOL, \
"ERROR: 6th orbital_elements_j2000() test doesn't match"
def test_neptune_geocentric_position():
"""Tests the geocentric_position() method of Neptune class"""
epoch = Epoch(1992, 12, 20.0)
ra, dec, elon = Neptune.geocentric_position(epoch)
assert ra.ra_str(n_dec=1) == "19h 17' 14.5''", \
"ERROR: 1st geocentric_position() test doesn't match"
assert dec.dms_str(n_dec=1) == "-21d 34' 15.1''", \
"ERROR: 2nd geocentric_position() test doesn't match"
assert elon.dms_str(n_dec=1) == "19d 44' 59.6''", \
"ERROR: 3rd geocentric_position() test doesn't match"
def test_neptune_conjunction():
"""Tests the conjunction() method of Neptune class"""
epoch = Epoch(1993, 10, 1.0)
conjunction = Neptune.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) - 11.3057) < TOL, \
"ERROR: 3rd conjunction() test doesn't match"
def test_neptune_opposition():
"""Tests the opposition() method of Neptune class"""
epoch = Epoch(1846, 8, 1)
oppo = Neptune.opposition(epoch)
y, m, d = oppo.get_date()
assert abs(round(y, 0) - 1846) < TOL, \
"ERROR: 1st opposition() test doesn't match"
assert abs(round(m, 0) - 8) < TOL, \
"ERROR: 2nd opposition() test doesn't match"
assert abs(round(d, 4) - 20.1623) < TOL, \
"ERROR: 3rd opposition() test doesn't match"
|
