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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:34:52

Orbital Elements for HU389
WDS: HU389 WDS ID/Discoverer
P: 186.000 Orbital period (years)
a: 0.2995 Semi-major axis (arcseconds)
i: 50.6 Inclination (degrees)
Ω: 122.5 Longitude of ascending node (degrees)
T: 2006.320 Epoch of periastron passage (year)
e: 0.417 Eccentricity
ω: 158.9 Longitude of periastron (degrees)
Start-Year: 1932.0 Year
End-Year: 2118.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU389
Position: 223410.47-184111.9 Epoch-2000 right ascension and declination
WDS-ID: 22342-1841 WDS designation
Discoverer Code: HU389 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 11406 Hipparcos catalog number
V1: 9.90 Magnitude of the primary
V2: 9.24 Magnitude of the secondary
Equinox: Equinox
Date: 2019 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HU389
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:34:52 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 = [-0.35722141460977513, -0.3541469151438985, -0.35091558060140066, -0.347527193545827, -0.34398153101043594, -0.3402783658051051, -0.33641746796321875, -0.3323986063434358, -0.32822155040293927, -0.3238860721606953, -0.3193919483713827, -0.3147389629330587, -0.3099269095543236, -0.30495559470975814, -0.29982484091581124, -0.2945344903631262, -0.2890844089455945, -0.283474490731242, -0.27770466292552004, -0.27177489138369343, ...], y_list = [-0.2037545412050633, -0.20689416262934682, -0.2099421565802466, -0.2128961867454276, -0.21575386515713682, -0.21851274928339046, -0.22117033901494604, -0.22372407354176532, -0.22617132811260782, -0.2285094106713478, -0.23073555836360995, -0.23284693390737127, -0.23484062182128784, -0.23671362450471803, -0.23846285816370996, -0.24008514857766447, -0.2415772267019766, -0.24293572410276557, -0.24415716822082228, -0.24523797746325263, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.35722141460977513, -0.3541469151438985, -0.35091558060140066, -0.347527193545827, -0.34398153101043594, -0.3402783658051051, -0.33641746796321875, -0.3323986063434358, -0.32822155040293927, -0.3238860721606953, -0.3193919483713827, -0.3147389629330587, -0.3099269095543236, -0.30495559470975814, -0.29982484091581124, -0.2945344903631262, -0.2890844089455945, -0.283474490731242, -0.27770466292552004, -0.27177489138369343, ...], y_list=[-0.2037545412050633, -0.20689416262934682, -0.2099421565802466, -0.2128961867454276, -0.21575386515713682, -0.21851274928339046, -0.22117033901494604, -0.22372407354176532, -0.22617132811260782, -0.2285094106713478, -0.23073555836360995, -0.23284693390737127, -0.23484062182128784, -0.23671362450471803, -0.23846285816370996, -0.24008514857766447, -0.2415772267019766, -0.24293572410276557, -0.24415716822082228, -0.24523797746325263, ...])
    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([-0.33447675, -0.3384348 , -0.34223258, -0...6, -0.32163757, -0.32607847, -0.33035808]), y = array([-1.33406411e-05, -5.23949007e-03, -1.0463....56548482e-02, 1.04364131e-02, 5.21280926e-03]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.33447675, -0.3384348 , -0.34223258, -0...6, -0.32163757, -0.32607847, -0.33035808]), array([-1.33406411e-05, -5.23949007e-03, -1.0463....56548482e-02, 1.04364131e-02, 5.21280926e-03])], 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([-0.33447675, -0.3384348 , -0.34223258, -0...6, -0.32163757, -0.32607847, -0.33035808]), array([-1.33406411e-05, -5.23949007e-03, -1.0463....56548482e-02, 1.04364131e-02, 5.21280926e-03])], 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([[-3.34476751e-01, -3.38434805e-01, -3.422...e-02, 1.04364131e-02, -1.33406411e-05]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.00435756, 0.00865032, 0.012...1339, 0.98653442, 0.99108903, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=193, 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([[-3.34476751e-01, -3.38434805e-01, -3.422...e-02, 1.04364131e-02, -1.33406411e-05]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.00435756, 0.00865032, 0.012...1339, 0.98653442, 0.99108903, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 193, 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>