def setUp(self): self.d = datetime.datetime(2003, 10, 17, 19, 30, 30, tzinfo = datetime.timezone.utc) # only works with Python 3 self.d += datetime.timedelta(seconds = stime.get_delta_t(self.d) - stime.tt_offset - stime.get_leap_seconds(self.d)) # Reda & Andreas say that this time is in "Local Standard Time", which they # define as 7 hours behind UT (not UTC). Hence the adjustment to convert UT # to UTC. self.longitude = -105.1786 self.latitude = 39.742476 self.pressure = 82000.0 # pascals self.elevation = 1830.14 # meters self.temperature = 11.0 + constants.celsius_offset # kelvin self.slope = 30.0 # degrees self.slope_orientation = -10.0 # degrees east from south self.jd = stime.get_julian_solar_day(self.d) self.jc = stime.get_julian_century(self.jd) self.jde = stime.get_julian_ephemeris_day(self.d) self.jce = stime.get_julian_ephemeris_century(self.jde) self.jme = stime.get_julian_ephemeris_millennium(self.jce) self.geocentric_longitude = solar.get_geocentric_longitude(self.jme) self.geocentric_latitude = solar.get_geocentric_latitude(self.jme) self.nutation = solar.get_nutation(self.jce) self.sun_earth_distance = solar.get_sun_earth_distance(self.jme) self.true_ecliptic_obliquity = solar.get_true_ecliptic_obliquity(self.jme, self.nutation) self.aberration_correction = solar.get_aberration_correction(self.sun_earth_distance) self.apparent_sun_longitude = solar.get_apparent_sun_longitude(self.geocentric_longitude, self.nutation, self.aberration_correction) self.apparent_sidereal_time = solar.get_apparent_sidereal_time(self.jd, self.jme, self.nutation) self.geocentric_sun_right_ascension = solar.get_geocentric_sun_right_ascension(self.apparent_sun_longitude, self.true_ecliptic_obliquity, self.geocentric_latitude) self.geocentric_sun_declination = solar.get_geocentric_sun_declination(self.apparent_sun_longitude, self.true_ecliptic_obliquity, self.geocentric_latitude) self.local_hour_angle = solar.get_local_hour_angle(318.5119, self.longitude, self.geocentric_sun_right_ascension) #self.apparent_sidereal_time only correct to 5 sig figs, so override self.equatorial_horizontal_parallax = solar.get_equatorial_horizontal_parallax(self.sun_earth_distance) self.projected_radial_distance = solar.get_projected_radial_distance(self.elevation, self.latitude) self.projected_axial_distance = solar.get_projected_axial_distance(self.elevation, self.latitude) self.topocentric_sun_right_ascension = solar.get_topocentric_sun_right_ascension(self.projected_radial_distance, self.equatorial_horizontal_parallax, self.local_hour_angle, self.apparent_sun_longitude, self.true_ecliptic_obliquity, self.geocentric_latitude) self.parallax_sun_right_ascension = solar.get_parallax_sun_right_ascension(self.projected_radial_distance, self.equatorial_horizontal_parallax, self.local_hour_angle, self.geocentric_sun_declination) self.topocentric_sun_declination = solar.get_topocentric_sun_declination(self.geocentric_sun_declination, self.projected_axial_distance, self.equatorial_horizontal_parallax, self.parallax_sun_right_ascension, self.local_hour_angle) self.topocentric_local_hour_angle = solar.get_topocentric_local_hour_angle(self.local_hour_angle, self.parallax_sun_right_ascension) self.topocentric_zenith_angle = solar.get_topocentric_zenith_angle(self.latitude, self.topocentric_sun_declination, self.topocentric_local_hour_angle, self.pressure, self.temperature) self.topocentric_azimuth_angle = solar.get_topocentric_azimuth_angle(self.topocentric_local_hour_angle, self.latitude, self.topocentric_sun_declination) self.incidence_angle = solar.get_incidence_angle(self.topocentric_zenith_angle, self.slope, self.slope_orientation, self.topocentric_azimuth_angle) self.pressure_with_elevation = elevation.get_pressure_with_elevation(1567.7) self.temperature_with_elevation = elevation.get_temperature_with_elevation(1567.7)
def test_solartime_get_delta_t_raise_error(self):
with self.assertRaises(NoTimeZoneInfoError):
solartime.get_delta_t(self.unaware)
def test_solartime_get_delta_t_no_error(self):
try:
solartime.get_delta_t(self.aware)
except NoTimeZoneInfoError:
self.fail("""'NoTimeZoneInfoError' should not be raised \
as 'datetime' object is tz-aware.""")