Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:06:46

Orbital Elements for HEI574
WDS: HEI574 WDS ID/Discoverer
P: 400.000 Orbital period (years)
a: 0.472 Semi-major axis (arcseconds)
i: 85.9 Inclination (degrees)
Ω: 150.8 Longitude of ascending node (degrees)
T: 1967.845 Epoch of periastron passage (year)
e: 0.8 Eccentricity
ω: 200.0 Longitude of periastron (degrees)
Start-Year: 1825.0 Year
End-Year: 2225.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI574
Position: 193237.25+120237.0 Epoch-2000 right ascension and declination
WDS-ID: 19326+1203 WDS designation
Discoverer Code: HEI574 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 184130 HD catalog number
Hipparcos number: 96120 Hipparcos catalog number
V1: 8.75 Magnitude of the primary
V2: 9.22 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HEI574
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:06:47 2025

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/cgi-bin/ds_orbit.py in <module>
    891 
    892 # Smooth curve if necessary
=>  893 x_smooth, y_smooth = Q_get_smoothed_orbit(x_list, y_list)
    894 plt.plot(x_smooth, y_smooth, label=f'Orbit of {wds}', color='#528B8B')
    895 
x_smooth undefined, y_smooth undefined, Q_get_smoothed_orbit = <function Q_get_smoothed_orbit>, x_list = [-0.3141764998293819, -0.312724222647033, -0.3112561058041225, -0.3097721199230049, -0.3082722345927781, -0.3067564183589171, -0.30522463871254857, -0.30367686207936573, -0.3021130538081733, -0.3005331781590607, -0.2989371982911933, -0.2973250762502192, -0.29569677295528163, -0.2940522481856332, -0.29239146056684634, -0.2907143675566079, -0.2890209254300973, -0.28731108926494164, -0.285584812925734, -0.28384204904811733, ...], y_list = [-0.620730321814941, -0.6183388275542764, -0.615916014052364, -0.613461798746482, -0.6109760967033692, -0.6084588205865719, -0.6059098806226936, -0.6033291845665204, -0.6007166376649907, -0.5980721426199804, -0.5953955995498635, -0.592686905949824, -0.5899459566508709, -0.5871726437775324, -0.5843668567041826, -0.5815284820099592, -0.5786574034322366, -0.5757535018186136, -0.5728166550773575, -0.5698467381262732, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.3141764998293819, -0.312724222647033, -0.3112561058041225, -0.3097721199230049, -0.3082722345927781, -0.3067564183589171, -0.30522463871254857, -0.30367686207936573, -0.3021130538081733, -0.3005331781590607, -0.2989371982911933, -0.2973250762502192, -0.29569677295528163, -0.2940522481856332, -0.29239146056684634, -0.2907143675566079, -0.2890209254300973, -0.28731108926494164, -0.285584812925734, -0.28384204904811733, ...], y_list=[-0.620730321814941, -0.6183388275542764, -0.615916014052364, -0.613461798746482, -0.6109760967033692, -0.6084588205865719, -0.6059098806226936, -0.6033291845665204, -0.6007166376649907, -0.5980721426199804, -0.5953955995498635, -0.592686905949824, -0.5899459566508709, -0.5871726437775324, -0.5843668567041826, -0.5815284820099592, -0.5786574034322366, -0.5757535018186136, -0.5728166550773575, -0.5698467381262732, ...])
    272     # Nur wenn ausreichend Punkte vorhanden sind
    273     if len(x) >= 4:
=>  274         tck, u = splprep([x, y], s=0.0, per=True) # per=True für geschlossene Kurve (Orbit)
    275         u_fine = np.linspace(0, 1, 300)           # Feinere Parameterwerte
    276         return splev(u_fine, tck)
tck undefined, u undefined, splprep = <function splprep>, x = array([-1.24910395e-02, -2.06247135e-02, -2.8594...72e-02, 4.06531115e-03, -4.23684728e-03]), y = array([-0.00213561, -0.01552683, -0.02879631, -0...4, 0.03742702, 0.02453719, 0.01127216]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-1.24910395e-02, -2.06247135e-02, -2.8594...72e-02, 4.06531115e-03, -4.23684728e-03]), array([-0.00213561, -0.01552683, -0.02879631, -0...4, 0.03742702, 0.02453719, 0.01127216])], w=None, u=None, ub=None, ue=None, k=3, task=0, s=0.0, t=None, full_output=0, nest=None, per=True, quiet=1)
    153     """
    154 
=>  155     res = _impl.splprep(x, w, u, ub, ue, k, task, s, t, full_output, nest, per,
=>  156                         quiet)
    157     return res
res undefined, global _impl = <module 'scipy.interpolate._fitpack_impl' from '...ist-packages/scipy/interpolate/_fitpack_impl.py'>, _impl.splprep = <function splprep>, x = [array([-1.24910395e-02, -2.06247135e-02, -2.8594...72e-02, 4.06531115e-03, -4.23684728e-03]), array([-0.00213561, -0.01552683, -0.02879631, -0...4, 0.03742702, 0.02453719, 0.01127216])], w = None, u = None, ub = None, ue = None, k = 3, task = 0, s = 0.0, t = None, full_output = 0, nest = None, per = True, quiet = 1
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_impl.py in splprep(x=array([[-1.24910395e-02, -2.06247135e-02, -2.859...e-02, 2.45371930e-02, -2.13560940e-03]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1..., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.00859113, 0.01707854, 0.025...0114, 0.97439838, 0.98278606, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=407, per=True, quiet=1)
    172     wrk = _parcur_cache['wrk']
    173     iwrk = _parcur_cache['iwrk']
=>  174     t, c, o = _fitpack._parcur(ravel(transpose(x)), w, u, ub, ue, k,
=>  175                                task, ipar, s, t, nest, wrk, iwrk, per)
    176     _parcur_cache['u'] = o['u']
t = array([], dtype=float64), c undefined, o undefined, global _fitpack = <module 'scipy.interpolate._fitpack' from '/usr/...polate/_fitpack.cpython-312-x86_64-linux-gnu.so'>, _fitpack._parcur = <built-in function _parcur>, global ravel = <function ravel>, global transpose = <function transpose>, x = array([[-1.24910395e-02, -2.06247135e-02, -2.859...e-02, 2.45371930e-02, -2.13560940e-03]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1..., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.00859113, 0.01707854, 0.025...0114, 0.97439838, 0.98278606, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 407, wrk = array([], dtype=float64), iwrk = array([], dtype=int32), per = True

ValueError: Invalid inputs.
      add_note = <built-in method add_note of ValueError object>
      args = ('Invalid inputs.',)
      with_traceback = <built-in method with_traceback of ValueError object>