def test_mars_perihelion_aphelion():
"""Tests the perihelion_aphelion() method of Mars class"""
epoch = Epoch(2019, 2, 23.0)
e = Mars.perihelion_aphelion(epoch)
y, m, d, h, mi, s = e.get_full_date()
assert abs(y - 2018) < TOL, \
"ERROR: 1st perihelion_aphelion() test doesn't match"
assert abs(m - 9) < TOL, \
"ERROR: 2nd perihelion_aphelion() test doesn't match"
assert abs(d - 16) < TOL, \
"ERROR: 3rd perihelion_aphelion() test doesn't match"
assert abs(h - 12) < TOL, \
"ERROR: 4th perihelion_aphelion() test doesn't match"
epoch = Epoch(2032, 1, 1.0)
e = Mars.perihelion_aphelion(epoch, perihelion=False)
y, m, d, h, mi, s = e.get_full_date()
assert abs(y - 2032) < TOL, \
"ERROR: 5th perihelion_aphelion() test doesn't match"
assert abs(m - 10) < TOL, \
"ERROR: 6th perihelion_aphelion() test doesn't match"
assert abs(d - 24) < TOL, \
"ERROR: 7th perihelion_aphelion() test doesn't match"
assert abs(h - 22) < TOL, \
"ERROR: 8th perihelion_aphelion() test doesn't match"
def test_mars_geocentric_position():
"""Tests the geocentric_position() method of Mars class"""
epoch = Epoch(1992, 12, 20.0)
ra, dec, elon = Mars.geocentric_position(epoch)
assert ra.ra_str(n_dec=1) == "7h 48' 35.4''", \
"ERROR: 1st geocentric_position() test doesn't match"
assert dec.dms_str(n_dec=1) == "24d 35' 33.9''", \
"ERROR: 2nd geocentric_position() test doesn't match"
assert elon.dms_str(n_dec=1) == "153d 35' 1.6''", \
"ERROR: 3rd geocentric_position() test doesn't match"
def test_mars_geometric_heliocentric_position():
"""Tests the geometric_heliocentric_position() method of Mars class"""
epoch = Epoch(2018, 10, 27.0)
lon, lat, r = Mars.geometric_heliocentric_position(epoch)
assert abs(round(lon.to_positive(), 4) - 2.0015) < TOL, \
"ERROR: 1st geometric_heliocentric_position() test doesn't match"
assert abs(round(lat, 4) - (-1.3683)) < TOL, \
"ERROR: 2nd geometric_heliocentric_position() test doesn't match"
assert abs(round(r, 5) - 1.39306) < TOL, \
"ERROR: 3rd geometric_heliocentric_position() test doesn't match"
def test_mars_station_longitude_2():
"""Tests the station_longitude_2() method of Mars class"""
epoch = Epoch(1997, 3, 1.0)
sta2 = Mars.station_longitude_2(epoch)
y, m, d = sta2.get_date()
assert abs(round(y, 0) - 1997) < TOL, \
"ERROR: 1st station_longitude_2() test doesn't match"
assert abs(round(m, 0) - 4) < TOL, \
"ERROR: 2nd station_longitude_2() test doesn't match"
assert abs(round(d, 4) - 27.7553) < TOL, \
"ERROR: 3rd station_longitude_2() test doesn't match"
def test_mars_superior_conjunction():
"""Tests the opposition() method of Mars class"""
epoch = Epoch(2729, 10, 1.0)
oppo = Mars.opposition(epoch)
y, m, d = oppo.get_date()
assert abs(round(y, 0) - 2729) < TOL, \
"ERROR: 1st opposition() test doesn't match"
assert abs(round(m, 0) - 9) < TOL, \
"ERROR: 2nd opposition() test doesn't match"
assert abs(round(d, 4) - 9.1412) < TOL, \
"ERROR: 3rd opposition() test doesn't match"
def test_mars_conjunction():
"""Tests the conjunction() method of Mars class"""
epoch = Epoch(1993, 10, 1.0)
conjunction = Mars.conjunction(epoch)
y, m, d = conjunction.get_date()
assert abs(round(y, 0) - 1993) < TOL, \
"ERROR: 1st conjunction() test doesn't match"
assert abs(round(m, 0) - 12) < TOL, \
"ERROR: 2nd conjunction() test doesn't match"
assert abs(round(d, 4) - 27.0898) < TOL, \
"ERROR: 3rd conjunction() test doesn't match"
def test_mars_passage_nodes():
"""Tests the passage_nodes() method of Mars class"""
epoch = Epoch(2019, 1, 1)
time, r = Mars.passage_nodes(epoch)
y, m, d = time.get_date()
d = round(d, 1)
r = round(r, 4)
assert abs(y - 2019) < TOL, \
"ERROR: 1st passage_nodes() test doesn't match"
assert abs(m - 1) < TOL, \
"ERROR: 2nd passage_nodes() test doesn't match"
assert abs(d - 15.2) < TOL, \
"ERROR: 3rd passage_nodes() test doesn't match"
assert abs(r - 1.4709) < TOL, \
"ERROR: 4th passage_nodes() test doesn't match"
def test_mars_orbital_elements_j2000():
"""Tests the orbital_elements_j2000() method of Mars class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Mars.orbital_elements_j2000(epoch)
assert abs(round(l, 6) - 287.94027) < TOL, \
"ERROR: 1st orbital_elements_j2000() test doesn't match"
assert abs(round(a, 8) - 1.52367934) < TOL, \
"ERROR: 2nd orbital_elements_j2000() test doesn't match"
assert abs(round(e, 7) - 0.0934599) < TOL, \
"ERROR: 3rd orbital_elements_j2000() test doesn't match"
assert abs(round(i, 6) - 1.844381) < TOL, \
"ERROR: 4th orbital_elements_j2000() test doesn't match"
assert abs(round(ome, 5) - 49.36464) < TOL, \
"ERROR: 5th orbital_elements_j2000() test doesn't match"
assert abs(round(arg, 6) - 286.98617) < TOL, \
"ERROR: 6th orbital_elements_j2000() test doesn't match"
def test_mars_orbital_elements_mean_equinox():
"""Tests the orbital_elements_mean_equinox() method of Mars class"""
epoch = Epoch(2065, 6, 24.0)
l, a, e, i, ome, arg = Mars.orbital_elements_mean_equinox(epoch)
assert abs(round(l, 6) - 288.855211) < TOL, \
"ERROR: 1st orbital_elements_mean_equinox() test doesn't match"
assert abs(round(a, 8) - 1.52367934) < TOL, \
"ERROR: 2nd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(e, 7) - 0.0934599) < TOL, \
"ERROR: 3rd orbital_elements_mean_equinox() test doesn't match"
assert abs(round(i, 6) - 1.849338) < TOL, \
"ERROR: 4th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(ome, 5) - 50.06365) < TOL, \
"ERROR: 5th orbital_elements_mean_equinox() test doesn't match"
assert abs(round(arg, 6) - 287.202108) < TOL, \
"ERROR: 6th orbital_elements_mean_equinox() test doesn't match"